As filed with the Securities and Exchange Commission on July 2, 1997.

                                                  Registration No. 333-_________

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC. 20549

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933

                               QUANTUM CORPORATION
               (Exact name of issuer as specified in its charter)


                DELAWARE                              94-2665054
                --------                              ----------
        (State of incorporation)            (IRS Employer Identification No.)

                             500 McCarthy Boulevard
                           Milpitas, California 95035
                    (Address of principal executive offices)

                      ------------------------------------

                          1993 Long-Term Incentive Plan
                            (Full title of the plan)

                      ------------------------------------

                               Richard L. Clemmer
                             Chief Financial Officer
                               Quantum Corporation
                             500 McCarthy Boulevard
                           Milpitas, California 95035
                     (Name and address of agent for service)

                                 (408) 894-4000
          (Telephone number, including area code, of agent for service)

                      ------------------------------------

                                    Copy to:
                             Steven E. Bochner, Esq.
                       WILSON, SONSINI, GOODRICH & ROSATI
                               650 Page Mill Road
                        Palo Alto, California 94304-1050


================================================================================




<PAGE>


<TABLE>


                                             CALCULATION OF REGISTRATION FEE

============================================ =================== ================ =================== ==================
<CAPTION>
            Title of Securities                 Amount to be        Proposed           Proposed           Amount of
             to be Registered                    Registered          Maximum           Maximum          Registration
                                                                    Offering           Aggregate            Fee
                                                                      Price            Offering 
                                                                    Per Share*          Price*
-------------------------------------------- ------------------- ---------------- ------------------- ------------------
<S>                                              <C>                 <C>             <C>                 <C>       
               Common Stock                      5,234,578           $20.125         $105,345,882        $31,923.00
============================================ =================== ================ =================== ==================
<FN>

*  Estimated  in  accordance   with  Rule  457(h)  solely  for  the  purpose  of
   calculating the  registration fee based on the prices of the Company's Common
   Stock as reported on the Nasdaq National Market on June 27, 1997.

=======================================================================================================================
</FN>
</TABLE>


<PAGE>

                               QUANTUM CORPORATION
                       REGISTRATION STATEMENT ON FORM S-8

                                     PART II

                 INFORMATION REQUIRED IN REGISTRATION STATEMENT


Item 3.  Incorporation of Documents by Reference

         There  are  hereby  incorporated  by  reference  in  this  Registration
Statement the  following  documents and  information  heretofore  filed with the
Securities and Exchange Commission (Quantum Corporation is sometimes referred to
herein as the "Company"):

                  (a) The  Company's  Annual  Report on Form 10-K for the fiscal
          year  ended  March 31,  1997,  filed  pursuant  to  Section  13 of the
          Securities Exchange Act of 1934, as amended (the "1934 Act");

                  (b) The  Company's  current  report on Form 8-K filed  June 2,
         1997, pursuant to Section 13 of the 1934 Act.

                  (c) The Company's Form S-8  Registration  Statement  under the
          Securities Act of 1933, as amended (File No.  33-72222),  which became
          effective November 30, 1993.

                  (d) The description of the Company's Common Stock contained in
         the Company's  Registration  Statement on Form 8-A filed August 1, 1983
         pursuant to Section 12(b) of the 1934 Act.

         All documents filed by the Company  pursuant to Sections 13(a),  13(c),
14 and 15(d) of the 1934 Act on or after the date of this Registration Statement
and prior to the filing of a  post-effective  amendment which indicates that all
securities  offered  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.

                                      II-1

<PAGE>




The following additional Exhibits are hereby enclosed for filing:



   Exhibit
   Number                     Description
   ------                     -----------

     5.1     Opinion of Counsel as to legality of securities being registered.

     23.1    Consent of Ernst & Young LLP, Independent Auditors.

     23.2    Consent of Counsel (contained in Exhibit 5.1).

     24.1    Power of Attorney (see page II-4).


                                      II-2

<PAGE>



                                   SIGNATURES

         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  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  Milpitas,  State of
California, on this 2nd day of July, 1997.

                                              QUANTUM CORPORATION


                                              By: \s\ RICHARD L. CLEMMER
                                                  -----------------------------
                                                  Richard L. Clemmer,
                                                  Chief Financial Officer


                                      II-3

<PAGE>


                                POWER OF ATTORNEY


         KNOW ALL PERSONS BY THESE  PRESENTS,  that each person whose  signature
appears below  constitutes and appoints Michael A. Brown and Richard L. Clemmer,
jointly  and  severally,   his   attorneys-in-fact,   each  with  the  power  of
substitution,  for him in any and all capacities, to sign any amendments to this
Registration  Statement on Form S-8, 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 of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated.



       Signature                         Title                         Date
                                                                                

\s\MICHAEL A. BROWN               Chief Executive Officer           July 2, 1997
------------------------------    (Principal Executive Officer)                 
Michael A. Brown                  

                                  
\s\RICHARD L. CLEMMER             Chief Financial Officer           July 2, 1997
-----------------------------     (Principal Financial and                      
 Richard L. Clemmer               Accounting Officer)                           
                                  

\s\STEPHEN M. BERKLEY             Chairman of the Board             July 2, 1997
------------------------------                                                  
Stephen M. Berkley                                                              
                                                                                
                                                                                
\s\DAVID A. BROWN                 Director                          July 2, 1997
------------------------------                                                  
David A. Brown                                                                  
                                                                                
                                                                                
\s\ROBERT J. CASALE               Director                          July 2, 1997
------------------------------                                                  
Robert J. Casale                                                                
                                                                                
                                                                                
\s\EDWARD M. ESBER                Director                          July 2, 1997
------------------------------                                                  
Edward M. Esber                                                                 
                                                                                
                                                                                
\s\STEVEN C. WHEELWRIGHT          Director                          July 2, 1997
------------------------------                                                  
Steven C. Wheelwright             

                                      II-4

<PAGE>


                                INDEX TO EXHIBITS

                                                                    Sequentially
    Exhibit                                                           Numbered
    Number                   Description                                Page
-------------------------------------------------------------------------------


23.1  Consent of Ernst & Young LLP, Independent Auditors ...............  9

23.2  Consent of Counsel (contained in Exhibit 5.1).....................  8

24.1  Power of Attorney (see Page II-4 of Registration Statement).......  6
[{"type": "S-8", "sequence": "1", "description": "REGISTRATION STATEMENT", "secsgml_size_bytes": 11166}]
{"company-data": {"conformed-name": "QUANTUM CORP /DE/", "cik": "0000709283", "assigned-sic": "3572", "irs-number": "942665054", "state-of-incorporation": "DE", "fiscal-year-end": "0331"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-30627", "film-number": "97635437"}, "business-address": {"street1": "500 MCCARTHY BLVD", "city": "MILPITAS", "state": "CA", "zip": "95035", "phone": "4088944000"}}
As filed with the Securities and Exchange Commission on July 2, 1997.

                                                  Registration No. 333-_________

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC. 20549

                                    FORM S-8

                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933

                               QUANTUM CORPORATION
               (Exact name of issuer as specified in its charter)

                DELAWARE                              94-2665054
                --------                              ----------
        (State of incorporation)            (IRS Employer Identification No.)

                             500 McCarthy Boulevard
                           Milpitas, California 95035
                    (Address of principal executive offices)

                      ------------------------------------

                          1993 Long-Term Incentive Plan
                            (Full title of the plan)

                      ------------------------------------

                               Richard L. Clemmer
                             Chief Financial Officer
                               Quantum Corporation
                             500 McCarthy Boulevard
                           Milpitas, California 95035
                     (Name and address of agent for service)

                                 (408) 894-4000
          (Telephone number, including area code, of agent for service)

                      ------------------------------------

                                    Copy to:
                             Steven E. Bochner, Esq.
                       WILSON, SONSINI, GOODRICH & ROSATI
                               650 Page Mill Road
                        Palo Alto, California 94304-1050

================================================================================
CALCULATION OF REGISTRATION FEE

============================================ =================== ================ =================== ==================
Title of Securities                 Amount to be        Proposed           Proposed           Amount of
             to be Registered                    Registered          Maximum           Maximum          Registration
                                                                    Offering           Aggregate            Fee
                                                                      Price            Offering 
                                                                    Per Share*          Price*
-------------------------------------------- ------------------- ---------------- ------------------- ------------------
Common Stock                      5,234,578           $20.125         $105,345,882        $31,923.00
============================================ =================== ================ =================== ==================
*  Estimated  in  accordance   with  Rule  457(h)  solely  for  the  purpose  of
   calculating the  registration fee based on the prices of the Company's Common
   Stock as reported on the Nasdaq National Market on June 27, 1997.

=======================================================================================================================
QUANTUM CORPORATION
                       REGISTRATION STATEMENT ON FORM S-8

                                     PART II

                 INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference

         There  are  hereby  incorporated  by  reference  in  this  Registration
Statement the  following  documents and  information  heretofore  filed with the
Securities and Exchange Commission (Quantum Corporation is sometimes referred to
herein as the "Company"):

                  (a) The  Company's  Annual  Report on Form 10-K for the fiscal
          year  ended  March 31,  1997,  filed  pursuant  to  Section  13 of the
          Securities Exchange Act of 1934, as amended (the "1934 Act");

                  (b) The  Company's  current  report on Form 8-K filed  June 2,
         1997, pursuant to Section 13 of the 1934 Act.

                  (c) The Company's Form S-8  Registration  Statement  under the
          Securities Act of 1933, as amended (File No.  33-72222),  which became
          effective November 30, 1993.

                  (d) The description of the Company's Common Stock contained in
         the Company's  Registration  Statement on Form 8-A filed August 1, 1983
         pursuant to Section 12(b) of the 1934 Act.

         All documents filed by the Company  pursuant to Sections 13(a),  13(c),
14 and 15(d) of the 1934 Act on or after the date of this Registration Statement
and prior to the filing of a  post-effective  amendment which indicates that all
securities  offered  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.

                                      II-1
The following additional Exhibits are hereby enclosed for filing:

   Exhibit
   Number                     Description
   ------                     -----------

     5.1     Opinion of Counsel as to legality of securities being registered.

     23.1    Consent of Ernst & Young LLP, Independent Auditors.

     23.2    Consent of Counsel (contained in Exhibit 5.1).

     24.1    Power of Attorney (see page II-4).

                                      II-2
SIGNATURES

         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  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  Milpitas,  State of
California, on this 2nd day of July, 1997.

                                              QUANTUM CORPORATION

                                              By: \s\ RICHARD L. CLEMMER
                                                  -----------------------------
                                                  Richard L. Clemmer,
                                                  Chief Financial Officer

                                      II-3
POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE  PRESENTS,  that each person whose  signature
appears below  constitutes and appoints Michael A. Brown and Richard L. Clemmer,
jointly  and  severally,   his   attorneys-in-fact,   each  with  the  power  of
substitution,  for him in any and all capacities, to sign any amendments to this
Registration  Statement on Form S-8, 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 of  1933,  this
Registration  Statement  has  been  signed  by  the  following  persons  in  the
capacities and on the dates indicated.

       Signature                         Title                         Date
                                                                                

\s\MICHAEL A. BROWN               Chief Executive Officer           July 2, 1997
------------------------------    (Principal Executive Officer)                 
Michael A. Brown                  

                                  
\s\RICHARD L. CLEMMER             Chief Financial Officer           July 2, 1997
-----------------------------     (Principal Financial and                      
 Richard L. Clemmer               Accounting Officer)                           
                                  

\s\STEPHEN M. BERKLEY             Chairman of the Board             July 2, 1997
------------------------------                                                  
Stephen M. Berkley                                                              
                                                                                
                                                                                
\s\DAVID A. BROWN                 Director                          July 2, 1997
------------------------------                                                  
David A. Brown                                                                  
                                                                                
                                                                                
\s\ROBERT J. CASALE               Director                          July 2, 1997
------------------------------                                                  
Robert J. Casale                                                                
                                                                                
                                                                                
\s\EDWARD M. ESBER                Director                          July 2, 1997
------------------------------                                                  
Edward M. Esber                                                                 
                                                                                
                                                                                
\s\STEVEN C. WHEELWRIGHT          Director                          July 2, 1997
------------------------------                                                  
Steven C. Wheelwright             

                                      II-4
INDEX TO EXHIBITS

                                                                    Sequentially
    Exhibit                                                           Numbered
    Number                   Description                                Page
-------------------------------------------------------------------------------

23.1  Consent of Ernst & Young LLP, Independent Auditors ...............  9

23.2  Consent of Counsel (contained in Exhibit 5.1).....................  8

24.1  Power of Attorney (see Page II-4 of Registration Statement).......  6