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  <td align="right" width="100%"><font size="2" style="FONT-FAMILY: times new roman">As filed with the Securities and Exchange Commission on&#160;June 29, 2011<font size="3" style="FONT-FAMILY: times new roman"><br>
  </font>Registration No. 333-_____</font></td>
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  <td align="right" width="100%" style="BORDER-BOTTOM: #000000 2pt double">&#160;</td>
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  <div>&#160;</div>
  
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="4" style="FONT-FAMILY: Times New Roman">UNITED STATES<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="4" style="FONT-FAMILY: Times New Roman">SECURITIES AND EXCHANGE COMMISSION<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">Washington, D.C. 20549<br>
  ____________________<br>
  <br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="5" style="FONT-FAMILY: Times New Roman">FORM S-8<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="5" style="FONT-FAMILY: Times New Roman">REGISTRATION STATEMENT<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-STYLE: italic">Under <br>
  </font></font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman"><font style="DISPLAY: inline; FONT-STYLE: italic">The Securities Act of 1933<br>
  </font>____________________<br>
  <br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="5" style="FONT-FAMILY: Times New Roman">QUANTUM CORPORATION<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="1" style="FONT-FAMILY: Times New Roman">(Exact name of issuer as specified in its charter)<br>
  <font size="2" style="FONT-FAMILY: Times New Roman">____________________</font></font></font></div>
  
  <div>&#160;</div>
  
  <div>
  <table border="0" cellpadding="0" cellspacing="0" width="100%" style="">
  <tr valign="bottom">
  <td nowrap width="50%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">DELAWARE<br>
  <font size="1" style="FONT-FAMILY: times new roman">(State of incorporation)</font></font></font></td>
  <td nowrap width="49%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">94-2665054<br>
  <font size="1" style="FONT-FAMILY: times new roman">(I.R.S. Employer<br>
  Identification Number)</font></font></font></td>
  </tr></table>
  </div>
  
  <br>
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">1650 Technology Drive, Suite 800<br>
  San Jose, California 95110<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="1" style="FONT-FAMILY: Times New Roman">(Address of principal executive offices)<br>
  <font size="2" style="FONT-FAMILY: Times New Roman">____________________<br>
  </font><br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="1" style="FONT-FAMILY: Times New Roman"><font size="2" style="FONT-FAMILY: Times New Roman">Pancetera Software, Inc. Amended and Restated 2008 Stock Option and Stock Purchase Plan</font><br>
  (Full title of the plan(s))<br>
  <font size="2" style="FONT-FAMILY: Times New Roman">____________________</font></font></font></div>
  
  <div>&#160;</div>
  
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">Shawn D. Hall <br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">Sr. Vice President, General Counsel and Secretary<br>
  Quantum Corporation<br>
  1650 Technology Drive, Suite 800<br>
  San Jose, California 95110<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="1" style="FONT-FAMILY: Times New Roman">(Name and address of agent for service)<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">(408) 944-4000<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="1" style="FONT-FAMILY: Times New Roman">(Telephone number, including area code, of agent for service)<br>
  <font size="2" style="FONT-FAMILY: Times New Roman">____________________</font></font></font></div>
  
  <div>&#160;</div>
  
  <div align="center"><font style="DISPLAY: inline; FONT-STYLE: italic"><font size="2" style="FONT-FAMILY: Times New Roman">Copy to:<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">Steven E. Bochner, Esq.<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">WILSON SONSINI GOODRICH &amp; ROSATI<br>
  Professional Corporation<br>
  650 Page Mill Road<br>
  Palo Alto, California 94304-1050<br>
  ____________________</font></font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221; and &#8220;smaller reporting company&#8221; in Rule 12b-2 of the Exchange Act.</font></div>
  
  <div>&#160;</div>
  
  <div align="center">
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  <td align="left" nowrap width="15%"><font size="2" style="FONT-FAMILY: times new roman">Large accelerated filer&#160; <font style="FONT-FAMILY: wingdings">o</font></font></td>
  <td align="left" nowrap width="44%">&#160;</td>
  <td align="left" nowrap width="40%"><font size="2" style="FONT-FAMILY: times new roman">Accelerated filer&#160;&#160; <font style="FONT-FAMILY: wingdings">&#254;</font></font></td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="15%"><font size="2" style="FONT-FAMILY: times new roman">Non-accelerated filer&#160;&#160;&#160; <font style="FONT-FAMILY: wingdings">o</font></font></td>
  <td align="left" nowrap width="44%"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160; (Do not check if a smaller reporting company)</font></td>
  <td align="left" nowrap width="40%"><font size="2" style="FONT-FAMILY: times new roman">Smaller reporting company&#160; <font style="FONT-FAMILY: wingdings">o</font></font></td>
  </tr></table>
  </div>
  
  <br>
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">CALCULATION OF REGISTRATION FEE </font></font></div>
  
  <div>&#160;</div>
  
  <div>
  <table border="0" cellpadding="0" cellspacing="0" width="100%" style="LINE-HEIGHT: 14pt; BORDER-COLLAPSE: collapse; ">
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  <td align="left" nowrap width="67%" style="BORDER-TOP: #000000 2pt double">&#160;</td>
  <td align="left" nowrap width="1%" style="BORDER-TOP: #000000 2pt double; BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td nowrap width="5%" style="BORDER-TOP: #000000 2pt double; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 2pt double; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 2pt double; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="4%" style="BORDER-TOP: #000000 2pt double; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Proposed</font></font></td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 2pt double; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 2pt double; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td colspan="2" nowrap width="8%" style="BORDER-TOP: #000000 2pt double; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Proposed</font></font></td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 2pt double; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-TOP: #000000 2pt double; BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td colspan="2" nowrap width="8%" style="BORDER-TOP: #000000 2pt double; TEXT-ALIGN: center">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="67%">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="5%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Amount</font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="4%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Maximum</font><font size="3" style="FONT-FAMILY: times new roman"> </font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td colspan="2" nowrap width="8%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Maximum</font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td colspan="2" nowrap width="8%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Amount of</font></font></td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="67%">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="5%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">to be</font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="4%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Offering Price</font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td colspan="2" nowrap width="8%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman"><font style="DISPLAY: inline; FONT-WEIGHT: bold">Aggregate</font><font size="3" style="FONT-FAMILY: times new roman"> </font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td colspan="2" nowrap width="8%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Registration</font></font></td>
  </tr><tr valign="bottom">
  <td nowrap width="67%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Title of Securities to be Registered</font></font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="5%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Registered</font></font></td>
  <td nowrap width="1%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="4%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Per Share</font></font></td>
  <td nowrap width="1%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td colspan="2" nowrap width="8%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Offering Price</font></font></td>
  <td nowrap width="1%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td colspan="2" nowrap width="8%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Fee</font></font></td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="67%" bgcolor="#ffffff"><font size="2" style="FONT-FAMILY: times new roman">QTM Common Stock, par value $0.01 per share,</font></td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="4%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="3%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="3%" bgcolor="#ffffff">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="67%" bgcolor="#ffffff"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; issuable under the Pancetera Software, Inc.</font></td>
  <td nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="5%" bgcolor="#ffffff" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">193,596 shares</font></td>
  <td align="right" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="4%" bgcolor="#ffffff" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">$3.21</font></td>
  <td align="right" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td align="right" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="right" nowrap width="5%" bgcolor="#ffffff"><font size="2" style="FONT-FAMILY: times new roman">$621,444</font></td>
  <td align="left" nowrap width="3%" bgcolor="#ffffff"><font size="2" style="FONT-FAMILY: times new roman">(1)</font></td>
  <td align="right" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td align="right" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="right" nowrap width="5%" bgcolor="#ffffff"><font size="2" style="FONT-FAMILY: times new roman">$72.15</font></td>
  <td align="left" nowrap width="3%" bgcolor="#ffffff"><font size="2" style="FONT-FAMILY: times new roman">(2)</font></td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="67%" bgcolor="#ffffff"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; Amended and Restated 2008 Stock Option </font></td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="4%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="3%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff">&#160;</td>
  <td align="left" nowrap width="3%" bgcolor="#ffffff">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="67%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; and Stock Purchase Plan</font></td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="4%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="3%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="1%" bgcolor="#ffffff" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="5%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  <td align="left" nowrap width="3%" bgcolor="#ffffff" style="BORDER-BOTTOM: black 1pt solid">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="67%" style="BORDER-BOTTOM: #000000 2pt double"><font size="2" style="FONT-FAMILY: times new roman">Total:</font></td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 2pt double; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="5%" style="BORDER-BOTTOM: #000000 2pt double; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">193,596 shares</font></td>
  <td align="right" nowrap width="1%" style="BORDER-BOTTOM: #000000 2pt double">&#160;</td>
  <td nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 2pt double; TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="4%" style="BORDER-BOTTOM: #000000 2pt double; TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">$3.21</font></td>
  <td align="right" nowrap width="1%" style="BORDER-BOTTOM: #000000 2pt double">&#160;</td>
  <td align="right" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 2pt double">&#160;</td>
  <td align="right" nowrap width="5%" style="BORDER-BOTTOM: #000000 2pt double"><font size="2" style="FONT-FAMILY: times new roman">$621,444</font></td>
  <td align="left" nowrap width="3%" style="BORDER-BOTTOM: #000000 2pt double">&#160;</td>
  <td align="right" nowrap width="1%" style="BORDER-BOTTOM: #000000 2pt double">&#160;</td>
  <td align="right" nowrap width="1%" style="BORDER-LEFT: #000000 1pt solid; BORDER-BOTTOM: #000000 2pt double">&#160;</td>
  <td align="right" nowrap width="5%" style="BORDER-BOTTOM: #000000 2pt double"><font size="2" style="FONT-FAMILY: times new roman">$72.15</font></td>
  <td align="left" nowrap width="3%" style="BORDER-BOTTOM: #000000 2pt double">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" colspan="14" nowrap width="67%"><font size="2" style="FONT-FAMILY: times new roman">&#160;</font></td>
  </tr></table>
  </div>
  
  <div>
  <table border="0" cellpadding="0" cellspacing="0" style="TEXT-ALIGN: justify; ">
  <tr>
  <td nowrap valign="top"><font size="2" style="FONT-FAMILY: times new roman">(1)</font></td>
  <td valign="top"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td valign="top" width="100%"><font size="2" style="FONT-FAMILY: times new roman">Estimated solely for the purpose of calculating the amount of the registration fee pursuant to Rules 457(c) and (h) under the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;) on the basis of $3.21 per share, the average of the high and low prices per share of the Registrant&#8217;s QTM Common Stock on June 21, 2011, as reported on the New York Stock Exchange.</font></td>
  </tr><tr>
  <td nowrap valign="top"><font size="2" style="FONT-FAMILY: times new roman">(2)</font></td>
  <td valign="top"><font size="2" style="FONT-FAMILY: times new roman">&#160;</font></td>
  <td valign="top" width="100%"><font size="2" style="FONT-FAMILY: times new roman">Amount of the Registration Fee was calculated pursuant to Section 6(b) of the Securities Act and was determined by multiplying the proposed maximum aggregate offering price by 0.00011610.</font></td>
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  <td colspan="3" nowrap valign="top">&#160; </td>
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  <br>
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">QUANTUM CORPORATION<br>
  </font></font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">REGISTRATION STATEMENT ON FORM S-8 </font></font></div>
  
  <div>&#160;</div>
  
  <div align="center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman">PART II </font></font></div>
  
  <div>&#160;</div>
  
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">INFORMATION REQUIRED IN REGISTRATION STATEMENT </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 3. </font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Incorporation of Documents by Reference</font></font><font size="2" style="FONT-FAMILY: Times New Roman">. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">The following documents and information filed with the Securities and Exchange Commission (the &#8220;Commission&#8221;) are hereby incorporated by reference in this Registration Statement of Quantum Corporation (referred to herein as the &#8220;Registrant&#8221;): </font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 15pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(a)</font><font size="2" style="FONT-FAMILY: Times New Roman"> </font><font size="2" style="FONT-FAMILY: Times New Roman">The Registrant's Annual Report on Form 10-K for the fiscal year ended March 31, 2011, filed with the Commission pursuant to Section 13 of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), on June 14, 2011;</font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 15pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(b)</font><font size="2" style="FONT-FAMILY: Times New Roman"> </font><font size="2" style="FONT-FAMILY: Times New Roman">The Registrant&#8217;s Current Reports on Form 8-K filed with the Commission dated April 1, 2011 (filed April 5, 2011), May 6, 2011 (filed May 10, 2011) and June 13, 2011 (filed June 14, 2011); and</font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 15pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(c)</font><font size="2" style="FONT-FAMILY: Times New Roman"> </font><font size="2" style="FONT-FAMILY: Times New Roman">The description of the Registrant's Common Stock contained in the Registrant's Registration Statement on Form 8-A filed with the Commission on July 21, 1999 pursuant to Section 12(b) of the Exchange Act and any amendment or report filed for the purpose of updating any such description. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">All documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act on or after the date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement which indicates that all securities offered pursuant to this Registration Statement have been sold or which deregisters all securities then remaining unsold shall be deemed to be incorporated by reference in this Registration Statement and to be part hereof from the date of filing of such documents. Any statement contained in a document incorporated or deemed to be incorporated by reference in this Registration Statement shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.</font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 4. </font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Description of Securities</font></font><font size="2" style="FONT-FAMILY: Times New Roman">. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>Inapplicable. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 5. </font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Interests of Named Experts and Counsel</font></font><font size="2" style="FONT-FAMILY: Times New Roman">. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>Inapplicable. </font></div>
  
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  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">II-1 </font></div>
  
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  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 6. </font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Indemnification of Directors and Officers</font></font><font size="2" style="FONT-FAMILY: Times New Roman">. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">Section 145 of the Delaware General Corporation Law authorizes a court to award, or a corporation's Board of Directors to grant, indemnification to directors and officers in terms sufficiently broad to permit such indemnification under certain circumstances for liabilities (including reimbursement for expenses incurred) arising under the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;). The Registrant&#8217;s Amended and Restated Certificate of Incorporation contains a provision eliminating the personal liability of the Registrant&#8217;s directors to the Registrant or its stockholders for breach of fiduciary duty as a director to the fullest extent permitted by applicable law. The Registrant's Bylaws, as amended, provide for the indemnification of its directors, officers, employees and other agents to the maximum extent permitted by Delaware General Corporation Law, and the Registrant has entered into agreements with its officers, directors and certain key employees implementing such indemnification. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 7. </font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Exemption from Registration Claimed</font></font><font size="2" style="FONT-FAMILY: Times New Roman">. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>Inapplicable. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 8. </font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Exhibits</font></font><font size="2" style="FONT-FAMILY: Times New Roman">. </font></div>
  
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  <td nowrap width="3%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Exhibit</font></font></td>
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  <td nowrap width="1%" style="TEXT-ALIGN: center">&#160;&#160;&#160;&#160; </td>
  <td nowrap width="3%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Number</font></font></td>
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  <td nowrap width="95%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Description</font></font></td>
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  <td nowrap valign="top" width="3%" bgcolor="#c0c0c0" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">4.1</font></td>
  <td align="left" nowrap valign="top" width="1%" bgcolor="#c0c0c0">&#160;</td>
  <td align="left" nowrap valign="top" width="95%" bgcolor="#c0c0c0"><font size="2" style="FONT-FAMILY: times new roman">Pancetera Software, Inc. Amended and Restated 2008 Stock Option and Stock Purchase Plan</font></td>
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  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">&#160;</font></td>
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  <td nowrap valign="top" width="3%" bgcolor="#c0c0c0" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">5.1</font></td>
  <td align="left" nowrap valign="top" width="1%" bgcolor="#c0c0c0">&#160;</td>
  <td align="left" nowrap valign="top" width="95%" bgcolor="#c0c0c0"><font size="2" style="FONT-FAMILY: times new roman">Opinion regarding legality of Wilson Sonsini Goodrich &amp; Rosati, P.C.</font></td>
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  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center">&#160;</td>
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  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">&#160;</font></td>
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  <td nowrap valign="top" width="3%" bgcolor="#c0c0c0" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">23.1</font></td>
  <td align="left" nowrap valign="top" width="1%" bgcolor="#c0c0c0">&#160;</td>
  <td align="left" nowrap valign="top" width="95%" bgcolor="#c0c0c0"><font size="2" style="FONT-FAMILY: times new roman">Consent of PricewaterhouseCoopers LLP</font></td>
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  <td nowrap valign="top" width="1%" style="TEXT-ALIGN: center">&#160;</td>
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  <td nowrap valign="top" width="3%" bgcolor="#c0c0c0" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">23.2</font></td>
  <td align="left" nowrap valign="top" width="1%" bgcolor="#c0c0c0">&#160;</td>
  <td align="left" nowrap valign="top" width="95%" bgcolor="#c0c0c0"><font size="2" style="FONT-FAMILY: times new roman">Consent of Wilson Sonsini Goodrich &amp; Rosati, P.C. (included in Exhibit 5.1)</font></td>
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  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">&#160;</font></td>
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  <td nowrap valign="top" width="3%" bgcolor="#c0c0c0" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">24.1</font></td>
  <td align="left" nowrap valign="top" width="1%" bgcolor="#c0c0c0">&#160;</td>
  <td align="left" nowrap valign="top" width="95%" bgcolor="#c0c0c0"><font size="2" style="FONT-FAMILY: times new roman">Power of Attorney (see page II-5)</font></td>
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  <br>
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman">ITEM 9. </font><font style="DISPLAY: inline; TEXT-DECORATION: underline"><font size="2" style="FONT-FAMILY: Times New Roman">Undertakings</font></font><font size="2" style="FONT-FAMILY: Times New Roman">. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">A.</font><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: Times New Roman"> </font></font><font size="2" style="FONT-FAMILY: Times New Roman">The undersigned Registrant hereby undertakes: </font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 15pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:</font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 30pt" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">(i) To include any prospectus required by Section 10(a)(3) of the Securities Act;</font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 30pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(ii) To reflect in the prospectus any facts or events arising after the effective date of the Registration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price </font><font size="2" style="FONT-FAMILY: Times New Roman">represent no more than a 20 percent change in the maximum aggregate offering price set forth in the &#8220;Calculation of Registration Fee&#8221; table in the effective Registration Statement;</font></div>
  
  <div style="PADDING-LEFT: 30pt" align="justify"><font size="2">&#160;</font></div>
  
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">II-2 </font></div>
  
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  <div style="PADDING-LEFT: 30pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(iii) To include any material information with respect to the plan of distribution not previously disclosed in the Registration Statement or any material change to such information in the Registration Statement;</font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 30pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font><font style="DISPLAY: inline; FONT-STYLE: italic">provided, however, </font></font><font size="2" style="FONT-FAMILY: Times New Roman">that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in the Registration Statement.</font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 15pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3" style="FONT-FAMILY: Times New Roman">&#160;&#160;&#160;&#160; </font>(2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial </font><font style="DISPLAY: inline; FONT-STYLE: italic"><font size="2" style="FONT-FAMILY: Times New Roman">bona fide </font></font><font size="2" style="FONT-FAMILY: Times New Roman">offering thereof.</font></div>
  
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  <div style="PADDING-LEFT: 15pt" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.</font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 15pt" align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">(4) That, for purposes of determining liability under the Securities Act to any purchaser, each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A, shall be deemed to be part of and included in the Registration Statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the Registration Statement or made in a document incorporated or deemed incorporated by reference into the Registration Statement or prospectus that is part of the Registration Statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the Registration Statement or prospectus that was part of the Registration Statement or made in any such document immediately prior to such date of first use.</font></div>
  
  <div>&#160;</div>
  
  <div style="PADDING-LEFT: 15pt" align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3">&#160;&#160;&#160;&#160; </font>(5) That, for the purpose of determining liability of the Registrant under the Securities Act to any purchaser in the initial distribution of the securities, in a primary offering of securities of the undersigned Registrant pursuant to this Registration Statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned Registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser: (i) Any preliminary prospectus or prospectus of the undersigned Registrant relating to the offering required to be filed pursuant to Rule 424; (ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned Registrant or used or referred to by the undersigned Registrant; (iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned Registrant or its securities provided by or on behalf of the undersigned Registrant; and (iv) Any other communication that is an offer in the offering made by the undersigned Registrant to the purchaser. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">B. The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">C. Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered hereunder, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question of whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue. </font></div>
  
  <div align="justify"><font size="2">&#160;</font></div>
  
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  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">SIGNATURES </font></div>
  
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  <div align="justify">&#160;&#160;&#160;&#160; <font size="2" style="FONT-FAMILY: Times New Roman">Pursuant to the requirements of the Securities Act, as amended, the Registrant, Quantum Corporation, a corporation organized and existing under the laws of the State of Delaware, certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Jose, State of California, on this 29<font style="FONT-SIZE: 70%; VERTICAL-ALIGN: text-top">th</font> day of June, 2011. </font></div>
  
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  <td align="left" colspan="2" nowrap width="50%"><font size="2" style="FONT-FAMILY: times new roman">QUANTUM CORPORATION</font></td>
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  </tr><tr valign="bottom">
  <td align="left" nowrap width="50%">&#160;</td>
  <td align="left" nowrap width="1%"><font size="2" style="FONT-FAMILY: times new roman">By:&#160; </font></td>
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  </tr><tr valign="bottom">
  <td align="left" nowrap width="50%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">Shawn D. Hall</font></td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="50%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="49%"><font size="2" style="FONT-FAMILY: times new roman">Senior Vice President, General Counsel and Secretary</font></td>
  </tr></table>
  </div>
  
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">&#160;</font></div>
  
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">II-4 </font></div>
  
  <br>
  <hr align="center" noshade size="2" width="100%">
  <div id="PGBRK">
  <div id="PN" style="PAGE-BREAK-BEFORE: always">&#160;</div>
  </div>
  
  <br>
  <div style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: Times New Roman">POWER OF ATTORNEY </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3">&#160;&#160;&#160;&#160; </font>KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Jon W. Gacek and Shawn D. Hall, jointly and severally, his or her attorneys-in-fact, each with the power of substitution, for him or her in any and all capacities, to sign any and all amendments to this Registration Statement on Form S-8 (including post-effective amendments), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his substitute or substitutes, may do or cause to be done by virtue hereof. </font></div>
  
  <div>&#160;</div>
  
  <div align="justify"><font size="2" style="FONT-FAMILY: Times New Roman"><font size="3">&#160;&#160;&#160;&#160; </font>Pursuant to the requirements of the Securities Act, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated:</font></div>
  
  <div>&#160;</div>
  
  <div>
  <table border="0" cellpadding="0" cellspacing="0" width="100%" style="LINE-HEIGHT: 14pt; BORDER-COLLAPSE: collapse; ">
  <tr valign="bottom">
  <td nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Signature</font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="60%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Title</font></font></td>
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  </tr><tr valign="bottom">
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  <td align="left" nowrap width="1%">&#160;</td>
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  <td align="left" nowrap width="1%">&#160;</td>
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  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Richard E. Belluzzo)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
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  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%"><font size="2" style="FONT-FAMILY: times new roman">President and Chief Executive Officer</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Jon W. Gacek)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Linda M. Breard</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%"><font size="2" style="FONT-FAMILY: times new roman">Chief Financial Officer (Principal<br>
  Financial Officer and Principal</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Linda M. Breard)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%"><font size="2" style="FONT-FAMILY: times new roman">Accounting Officer)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Paul R. Auvil, III</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="60%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Paul R. Auvil, III)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Michael A. Brown</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="60%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Michael A. Brown)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Thomas S. Buchsbaum</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="60%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Thomas S. Buchsbaum)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Edward M. Esber, Jr.</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="60%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Edward M. Esber, Jr.)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Elizabeth A. Fetter</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="60%">
  <div><font size="2" style="FONT-FAMILY: times new roman">Director</font></div>
  </td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Elizabeth A. Fetter)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Joseph A. Marengi</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="60%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
  <td align="left" nowrap valign="middle" width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Joseph A. Marengi)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap valign="middle" width="1%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ David E. Roberson</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="60%"><font size="2" style="FONT-FAMILY: times new roman">Director</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="15%"><font size="2" style="FONT-FAMILY: times new roman">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(David E. Roberson)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  </tr><tr>
  <td align="left" nowrap width="23%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="60%">&#160;</td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap width="15%">&#160;</td>
  </tr><tr valign="bottom">
  <td align="left" nowrap width="23%" style="BORDER-BOTTOM: #000000 1pt solid"><font size="2" style="FONT-FAMILY: times new roman">/s/ Dennis P. Wolf</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="60%"><font size="2">Director</font></td>
  <td align="left" nowrap valign="middle" width="1%">&#160;</td>
  <td align="left" nowrap rowspan="2" valign="middle" width="15%"><font size="2">June 29, 2011</font></td>
  </tr><tr valign="bottom">
  <td nowrap width="23%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">(Dennis P. Wolf)</font></td>
  <td align="left" nowrap width="1%">&#160;</td>
  <td align="left" nowrap valign="middle" width="1%">&#160;</td>
  </tr></table>
  </div>
  
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">&#160;</font></div>
  
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">II-5 </font></div>
  
  <br>
  <hr align="center" noshade size="2" width="100%">
  <div id="PGBRK">
  <div id="PN" style="PAGE-BREAK-BEFORE: always">&#160;</div>
  </div>
  
  <br>
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">INDEX TO EXHIBITS </font></div>
  
  <div>&#160;</div>
  
  <div>
  <table border="0" cellpadding="0" cellspacing="0" width="100%" style="">
  <tr valign="bottom" style="LINE-HEIGHT: 14pt;">
  <td nowrap width="3%" style="TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Exhibit</font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center">&#160;</td>
  <td nowrap width="95%" style="TEXT-ALIGN: center">&#160;</td>
  </tr><tr valign="bottom" style="LINE-HEIGHT: 14pt;">
  <td nowrap width="3%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Number</font></font></td>
  <td nowrap width="1%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">&#160;&#160;&#160;&#160;&#160;&#160; </font></td>
  <td nowrap width="95%" style="BORDER-BOTTOM: #000000 1pt solid; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-WEIGHT: bold"><font size="2" style="FONT-FAMILY: times new roman">Description</font></font></td>
  </tr><tr valign="bottom" bgcolor="silver">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">4.1</font></td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Pancetera Software, Inc. Amended and Restated 2008 Stock Option and Stock Purchase Plan</font></td>
  </tr><tr valign="bottom" bgcolor="white">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center">&#160;</td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">&#160;</font></td>
  </tr><tr valign="bottom" bgcolor="silver">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">5.1</font></td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Opinion regarding legality of Wilson Sonsini Goodrich &amp; Rosati, P.C.</font></td>
  </tr><tr valign="bottom" bgcolor="white">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center">&#160;</td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">&#160;</font></td>
  </tr><tr valign="bottom" bgcolor="silver">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">23.1</font></td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Consent of PricewaterhouseCoopers LLP</font></td>
  </tr><tr bgcolor="white">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center">&#160;</td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%">&#160; </td>
  </tr><tr valign="bottom" bgcolor="silver">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">23.2</font></td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Consent of Wilson Sonsini Goodrich &amp; Rosati, P.C. (included in Exhibit 5.1)</font></td>
  </tr><tr valign="bottom" bgcolor="white">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center">&#160;</td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">&#160;</font></td>
  </tr><tr valign="bottom" bgcolor="silver">
  <td nowrap valign="top" width="3%" style="TEXT-ALIGN: center"><font size="2" style="FONT-FAMILY: times new roman">24.1</font></td>
  <td align="left" nowrap valign="top" width="1%">&#160;</td>
  <td align="left" nowrap valign="top" width="95%"><font size="2" style="FONT-FAMILY: times new roman">Power of Attorney (see page II-5)</font></td>
  </tr></table>
  </div>
  
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">&#160;</font></div>
  
  <div align="center"><font size="2" style="FONT-FAMILY: Times New Roman">II-6 </font></div>
  
  <br>
  <hr align="center" noshade size="2" width="100%">
  </body>
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text: quantum_s8.htm
  As filed with the Securities and Exchange Commission on June 29, 2011
  Registration No. 333-_____
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  ____________________
  FORM S-8
  REGISTRATION STATEMENT
  Under
  The Securities Act of 1933
  ____________________
  QUANTUM CORPORATION
  (Exact name of issuer as specified in its charter)
  ____________________
  DELAWARE
  (State of incorporation)
  94-2665054
  (I.R.S. Employer
  Identification Number)
  1650 Technology Drive, Suite 800
  San Jose, California 95110
  (Address of principal executive offices)
  ____________________
  Pancetera Software, Inc. Amended and Restated 2008 Stock Option and Stock Purchase Plan
  (Full title of the plan(s))
  ____________________
  Shawn D. Hall
  Sr. Vice President, General Counsel and Secretary
  Quantum Corporation
  1650 Technology Drive, Suite 800
  San Jose, California 95110
  (Name and address of agent for service)
  (408) 944-4000
  (Telephone number, including area code, of agent for service)
  ____________________
  Copy to:
  Steven E. Bochner, Esq.
  WILSON SONSINI GOODRICH & ROSATI
  Professional Corporation
  650 Page Mill Road
  Palo Alto, California 94304-1050
  ____________________
  Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
  Large accelerated filer
  o
  Accelerated filer
  þ
  Non-accelerated filer
  o
  (Do not check if a smaller reporting company)
  Smaller reporting company
  o
  CALCULATION OF REGISTRATION FEE
  Proposed
  Proposed
  Amount
  Maximum
  Maximum
  Amount of
  to be
  Offering Price
  Aggregate
  Registration
  Title of Securities to be Registered
  Registered
  Per Share
  Offering Price
  Fee
  QTM Common Stock, par value $0.01 per share,
  issuable under the Pancetera Software, Inc.
  193,596 shares
  $3.21
  $621,444
  (1)
  $72.15
  (2)
  Amended and Restated 2008 Stock Option
  and Stock Purchase Plan
  Total:
  193,596 shares
  $3.21
  $621,444
  $72.15
  (1)
  Estimated solely for the purpose of calculating the amount of the registration fee pursuant to Rules 457(c) and (h) under the Securities Act of 1933, as amended (the "Securities Act") on the basis of $3.21 per share, the average of the high and low prices per share of the Registrant's QTM Common Stock on June 21, 2011, as reported on the New York Stock Exchange.
  (2)
  Amount of the Registration Fee was calculated pursuant to Section 6(b) of the Securities Act and was determined by multiplying the proposed maximum aggregate offering price by 0.00011610.
  QUANTUM CORPORATION
  REGISTRATION STATEMENT ON FORM S-8
  PART II
  INFORMATION REQUIRED IN REGISTRATION STATEMENT
  ITEM 3.
  Incorporation of Documents by Reference
  .
  The following documents and information filed with the Securities and Exchange Commission (the "Commission") are hereby incorporated by reference in this Registration Statement of Quantum Corporation (referred to herein as the "Registrant"):
  (a)
  The Registrant's Annual Report on Form 10-K for the fiscal year ended March 31, 2011, filed with the Commission pursuant to Section 13 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), on June 14, 2011;
  (b)
  The Registrant's Current Reports on Form 8-K filed with the Commission dated April 1, 2011 (filed April 5, 2011), May 6, 2011 (filed May 10, 2011) and June 13, 2011 (filed June 14, 2011); and
  (c)
  The description of the Registrant's Common Stock contained in the Registrant's Registration Statement on Form 8-A filed with the Commission on July 21, 1999 pursuant to Section 12(b) of the Exchange Act and any amendment or report filed for the purpose of updating any such description.
  All documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act on or after the date of this Registration Statement and prior to the filing of a post-effective amendment to this Registration Statement which indicates that all securities offered pursuant to this Registration Statement have been sold or which deregisters all securities then remaining unsold shall be deemed to be incorporated by reference in this Registration Statement and to be part hereof from the date of filing of such documents. Any statement contained in a document incorporated or deemed to be incorporated by reference in this Registration Statement shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained herein modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this Registration Statement.
  ITEM 4.
  Description of Securities
  .
  Inapplicable.
  ITEM 5.
  Interests of Named Experts and Counsel
  .
  Inapplicable.
  II-1
  ITEM 6.
  Indemnification of Directors and Officers
  .
  Section 145 of the Delaware General Corporation Law authorizes a court to award, or a corporation's Board of Directors to grant, indemnification to directors and officers in terms sufficiently broad to permit such indemnification under certain circumstances for liabilities (including reimbursement for expenses incurred) arising under the Securities Act of 1933, as amended (the "Securities Act"). The Registrant's Amended and Restated Certificate of Incorporation contains a provision eliminating the personal liability of the Registrant's directors to the Registrant or its stockholders for breach of fiduciary duty as a director to the fullest extent permitted by applicable law. The Registrant's Bylaws, as amended, provide for the indemnification of its directors, officers, employees and other agents to the maximum extent permitted by Delaware General Corporation Law, and the Registrant has entered into agreements with its officers, directors and certain key employees implementing such indemnification.
  ITEM 7.
  Exemption from Registration Claimed
  .
  Inapplicable.
  ITEM 8.
  Exhibits
  .
  Exhibit
  Number
  Description
  4.1
  Pancetera Software, Inc. Amended and Restated 2008 Stock Option and Stock Purchase Plan
  5.1
  Opinion regarding legality of Wilson Sonsini Goodrich & Rosati, P.C.
  23.1
  Consent of PricewaterhouseCoopers LLP
  23.2
  Consent of Wilson Sonsini Goodrich & Rosati, P.C. (included in Exhibit 5.1)
  24.1
  Power of Attorney (see page II-5)
  ITEM 9.
  Undertakings
  .
  A.
  The undersigned Registrant hereby undertakes:
  (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:
  (i) To include any prospectus required by Section 10(a)(3) of the Securities Act;
  (ii) To reflect in the prospectus any facts or events arising after the effective date of the Registration Statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price
  represent no more than a 20 percent change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective Registration Statement;
  II-2
  (iii) To include any material information with respect to the plan of distribution not previously disclosed in the Registration Statement or any material change to such information in the Registration Statement;
  provided, however,
  that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that are incorporated by reference in the Registration Statement.
  (2) That, for the purpose of determining any liability under the Securities Act, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial
  bona fide
  offering thereof.
  (3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
  (4) That, for purposes of determining liability under the Securities Act to any purchaser, each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A, shall be deemed to be part of and included in the Registration Statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the Registration Statement or made in a document incorporated or deemed incorporated by reference into the Registration Statement or prospectus that is part of the Registration Statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the Registration Statement or prospectus that was part of the Registration Statement or made in any such document immediately prior to such date of first use.
  (5) That, for the purpose of determining liability of the Registrant under the Securities Act to any purchaser in the initial distribution of the securities, in a primary offering of securities of the undersigned Registrant pursuant to this Registration Statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned Registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser: (i) Any preliminary prospectus or prospectus of the undersigned Registrant relating to the offering required to be filed pursuant to Rule 424; (ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned Registrant or used or referred to by the undersigned Registrant; (iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned Registrant or its securities provided by or on behalf of the undersigned Registrant; and (iv) Any other communication that is an offer in the offering made by the undersigned Registrant to the purchaser.
  B. The undersigned Registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
  C. Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to the foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person of the Registrant in successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered hereunder, the Registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question of whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.
  II-3
  SIGNATURES
  Pursuant to the requirements of the Securities Act, as amended, the Registrant, Quantum Corporation, a corporation organized and existing under the laws of the State of Delaware, certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Jose, State of California, on this 29
  th
  day of June, 2011.
  QUANTUM CORPORATION
  By:
  /s/ Shawn D. Hall
  Shawn D. Hall
  Senior Vice President, General Counsel and Secretary
  II-4
  POWER OF ATTORNEY
  KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Jon W. Gacek and Shawn D. Hall, jointly and severally, his or her attorneys-in-fact, each with the power of substitution, for him or her in any and all capacities, to sign any and all amendments to this Registration Statement on Form S-8 (including post-effective amendments), and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his substitute or substitutes, may do or cause to be done by virtue hereof.
  Pursuant to the requirements of the Securities Act, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated:
  Signature
  Title
  Date
  /s/ Richard E. Belluzzo
  Executive Chairman of the Board
  June 29, 2011
  (Richard E. Belluzzo)
  /s/ Jon W. Gacek
  President and Chief Executive Officer
  June 29, 2011
  (Jon W. Gacek)
  /s/ Linda M. Breard
  Chief Financial Officer (Principal
  Financial Officer and Principal
  June 29, 2011
  (Linda M. Breard)
  Accounting Officer)
  /s/ Paul R. Auvil, III
  Director
  June 29, 2011
  (Paul R. Auvil, III)
  /s/ Michael A. Brown
  Director
  June 29, 2011
  (Michael A. Brown)
  /s/ Thomas S. Buchsbaum
  Director
  June 29, 2011
  (Thomas S. Buchsbaum)
  /s/ Edward M. Esber, Jr.
  Director
  June 29, 2011
  (Edward M. Esber, Jr.)
  /s/ Elizabeth A. Fetter
  Director
  June 29, 2011
  (Elizabeth A. Fetter)
  /s/ Joseph A. Marengi
  Director
  June 29, 2011
  (Joseph A. Marengi)
  /s/ David E. Roberson
  Director
  June 29, 2011
  (David E. Roberson)
  /s/ Dennis P. Wolf
  Director
  June 29, 2011
  (Dennis P. Wolf)
  II-5
  INDEX TO EXHIBITS
  Exhibit
  Number
  Description
  4.1
  Pancetera Software, Inc. Amended and Restated 2008 Stock Option and Stock Purchase Plan
  5.1
  Opinion regarding legality of Wilson Sonsini Goodrich & Rosati, P.C.
  23.1
  Consent of PricewaterhouseCoopers LLP
  23.2
  Consent of Wilson Sonsini Goodrich & Rosati, P.C. (included in Exhibit 5.1)
  24.1
  Power of Attorney (see page II-5)
  II-6