<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549
                           --------------------------

                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934
                            -------------------------

       Date of Report (Date of earliest event reported): December 15, 2006

                          MERRILL LYNCH DEPOSITOR, INC.
                 (ON BEHALF OF PREFERREDPLUS TRUST SERIES CCR-1)
             (Exact name of registrant as specified in its charter)

             DELAWARE             001-16453                    13-3891329
         (State or other        (Commission                (I. R. S. Employer
         jurisdiction  of        File Number)              Identification No.)
          incorporation)

      WORLD FINANCIAL CENTER,                                     10080
        NEW YORK, NEW YORK                                     (Zip Code)
       (Address of principal
        executive offices)
                           --------------------------

       Registrant's telephone number, including area code: (212) 449-1000

                      INFORMATION TO BE INCLUDED IN REPORT

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2.):

[  ]  Written communications pursuant to Rule 425 under the Securities Act
      (17 CFR 230.425)

[  ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)

[  ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

[  ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))


<PAGE>

SECTION 1.        REGISTRANT'S BUSINESS AND OPERATIONS

                  Not applicable.

SECTION 2.        FINANCIAL INFORMATION

                  Not applicable.

SECTION 3.        SECURITIES AND TRADING MARKETS

                  Not applicable.

SECTION 4.        MATTERS RELATED TO ACCOUNTANTS AND FINANCIAL STATEMENTS

                  Not applicable.

SECTION 5.        CORPORATE GOVERNANCE AND MANAGEMENT

                  Not applicable.

SECTION 6.        ASSET-BACKED SECURITIES

                  Not Applicable.

SECTION 7.        REGULATION FD

                  Not applicable.

SECTION 8.        OTHER EVENTS

         ITEM 8.01    OTHER EVENTS

                      99.1   Distribution to holders of the PreferredPLUS Trust
                             Certificates CCR-1 on December 15, 2006.

                                      For information with respect to the
                             underlying securities held by PreferredPLUS Trust
                             Series CCR-1, please refer to Countrywide Financial
                             Corp.'s (Commission file number 001-12331-01)
                             periodic reports, including annual reports on Form
                             10-K, quarterly reports on Form 10-Q and current
                             reports on Form 8-K, and other information on file
                             with the Securities and Exchange Commission (the
                             "SEC"). You can read and copy these reports and
                             other information at the public reference
                             facilities maintained by the SEC at Room 1580, 100
                             F Street, NE, Washington, D.C. 20549. You may
                             obtain copies of this material for a fee by writing
                             to the SEC's Public Reference Section of the SEC at
                             100 F Street, NE, Washington, D.C. 20549. You may
                             obtain information about the operation of the
                             Public Reference Room by calling the SEC at
                             1-800-SEC-0330. You can also access some of this
                             information electronically by means of the SEC's
                             website on the Internet at http://www.sec.gov,
                             which contains reports, proxy and information
                             statements and other information that the
                             underlying securities issuer and underlying
                             securities guarantor have filed electronically with
                             the SEC.


<PAGE>

                                      Although we have no reason to believe the
                             information concerning the underlying securities,
                             the junior subordinated debentures, the underlying
                             securities issuer, the junior subordinated
                             debentures issuer or the underlying securities
                             guarantor contained in the underlying securities
                             guarantor's Exchange Act reports is not reliable,
                             neither the depositor nor the trustee participated
                             in the preparation of such documents or made any
                             due diligence inquiry with respect to the
                             information provided therein. No investigation with
                             respect to the underlying securities issuer, the
                             junior subordinated debentures issuer or the
                             underlying securities guarantor (including, without
                             limitation, no investigation as to their respective
                             financial condition or creditworthiness) or of the
                             underlying securities, the junior subordinated
                             debentures or the guarantees has been made. You
                             should obtain and evaluate the same information
                             concerning the underlying securities issuer, the
                             junior subordinated debentures issuer or the
                             underlying securities guarantor as you would obtain
                             and evaluate if you were investing directly in the
                             underlying securities or in other securities issued
                             by the underlying securities issuer or the
                             underlying securities guarantor. There can be no
                             assurance that events affecting the underlying
                             securities, the junior subordinated debentures, the
                             underlying securities issuer, the junior
                             subordinated debentures issuer or the underlying
                             securities guarantor have not occurred or have not
                             yet been publicly disclosed which would affect the
                             accuracy or completeness of the publicly available
                             documents described above.

SECTION 9.        FINANCIAL STATEMENTS AND EXHIBITS

         ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

                  (a) Financial statements of business acquired.

                      Not Applicable.

                  (b) Pro forma financial information.

                      Not Applicable.

                  (c) Shell company transactions.

                      Not applicable.

                  (d) Exhibits.

                      99.1     Trustee's report in respect of the December 15,
                               2006 distribution to holders of the PreferredPLUS
                               Trust Certificates Series CCR-1.


<PAGE>

                                   SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, hereunto duly authorized.

                                       MERRILL LYNCH DEPOSITOR, INC.

Date: 12/19/2006                       By:    /s/ Jason Liddell
                                              ----------------------------------
                                       Name:  Jason Liddell
                                       Title: Vice-President

<PAGE>

                                  EXHIBIT INDEX

99.1     Trustee's report in respect of the December 15, 2006 distribution to
         holders of the PreferredPLUS Trust Series CCR-1.
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SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D. C. 20549
                           --------------------------

                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934
                            -------------------------

       Date of Report (Date of earliest event reported): December 15, 2006

                          MERRILL LYNCH DEPOSITOR, INC.
                 (ON BEHALF OF PREFERREDPLUS TRUST SERIES CCR-1)
             (Exact name of registrant as specified in its charter)

             DELAWARE             001-16453                    13-3891329
         (State or other        (Commission                (I. R. S. Employer
         jurisdiction  of        File Number)              Identification No.)
          incorporation)

      WORLD FINANCIAL CENTER,                                     10080
        NEW YORK, NEW YORK                                     (Zip Code)
       (Address of principal
        executive offices)
                           --------------------------

       Registrant's telephone number, including area code: (212) 449-1000

                      INFORMATION TO BE INCLUDED IN REPORT

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2.):

[  ]  Written communications pursuant to Rule 425 under the Securities Act
      (17 CFR 230.425)

[  ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)

[  ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

[  ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))
SECTION 1.        REGISTRANT'S BUSINESS AND OPERATIONS

                  Not applicable.

SECTION 2.        FINANCIAL INFORMATION

                  Not applicable.

SECTION 3.        SECURITIES AND TRADING MARKETS

                  Not applicable.

SECTION 4.        MATTERS RELATED TO ACCOUNTANTS AND FINANCIAL STATEMENTS

                  Not applicable.

SECTION 5.        CORPORATE GOVERNANCE AND MANAGEMENT

                  Not applicable.

SECTION 6.        ASSET-BACKED SECURITIES

                  Not Applicable.

SECTION 7.        REGULATION FD

                  Not applicable.

SECTION 8.        OTHER EVENTS

         ITEM 8.01    OTHER EVENTS

                      99.1   Distribution to holders of the PreferredPLUS Trust
                             Certificates CCR-1 on December 15, 2006.

                                      For information with respect to the
                             underlying securities held by PreferredPLUS Trust
                             Series CCR-1, please refer to Countrywide Financial
                             Corp.'s (Commission file number 001-12331-01)
                             periodic reports, including annual reports on Form
                             10-K, quarterly reports on Form 10-Q and current
                             reports on Form 8-K, and other information on file
                             with the Securities and Exchange Commission (the
                             "SEC"). You can read and copy these reports and
                             other information at the public reference
                             facilities maintained by the SEC at Room 1580, 100
                             F Street, NE, Washington, D.C. 20549. You may
                             obtain copies of this material for a fee by writing
                             to the SEC's Public Reference Section of the SEC at
                             100 F Street, NE, Washington, D.C. 20549. You may
                             obtain information about the operation of the
                             Public Reference Room by calling the SEC at
                             1-800-SEC-0330. You can also access some of this
                             information electronically by means of the SEC's
                             website on the Internet at http://www.sec.gov,
                             which contains reports, proxy and information
                             statements and other information that the
                             underlying securities issuer and underlying
                             securities guarantor have filed electronically with
                             the SEC.
Although we have no reason to believe the
                             information concerning the underlying securities,
                             the junior subordinated debentures, the underlying
                             securities issuer, the junior subordinated
                             debentures issuer or the underlying securities
                             guarantor contained in the underlying securities
                             guarantor's Exchange Act reports is not reliable,
                             neither the depositor nor the trustee participated
                             in the preparation of such documents or made any
                             due diligence inquiry with respect to the
                             information provided therein. No investigation with
                             respect to the underlying securities issuer, the
                             junior subordinated debentures issuer or the
                             underlying securities guarantor (including, without
                             limitation, no investigation as to their respective
                             financial condition or creditworthiness) or of the
                             underlying securities, the junior subordinated
                             debentures or the guarantees has been made. You
                             should obtain and evaluate the same information
                             concerning the underlying securities issuer, the
                             junior subordinated debentures issuer or the
                             underlying securities guarantor as you would obtain
                             and evaluate if you were investing directly in the
                             underlying securities or in other securities issued
                             by the underlying securities issuer or the
                             underlying securities guarantor. There can be no
                             assurance that events affecting the underlying
                             securities, the junior subordinated debentures, the
                             underlying securities issuer, the junior
                             subordinated debentures issuer or the underlying
                             securities guarantor have not occurred or have not
                             yet been publicly disclosed which would affect the
                             accuracy or completeness of the publicly available
                             documents described above.

SECTION 9.        FINANCIAL STATEMENTS AND EXHIBITS

         ITEM 9.01    FINANCIAL STATEMENTS AND EXHIBITS

                  (a) Financial statements of business acquired.

                      Not Applicable.

                  (b) Pro forma financial information.

                      Not Applicable.

                  (c) Shell company transactions.

                      Not applicable.

                  (d) Exhibits.

                      99.1     Trustee's report in respect of the December 15,
                               2006 distribution to holders of the PreferredPLUS
                               Trust Certificates Series CCR-1.
SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, hereunto duly authorized.

                                       MERRILL LYNCH DEPOSITOR, INC.

Date: 12/19/2006                       By:    /s/ Jason Liddell
                                              ----------------------------------
                                       Name:  Jason Liddell
                                       Title: Vice-President
EXHIBIT INDEX

99.1     Trustee's report in respect of the December 15, 2006 distribution to
         holders of the PreferredPLUS Trust Series CCR-1.