FORM 8-A

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR (g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934


                         MERRILL LYNCH DEPOSITOR, INC.
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)


                Delaware                                 13-3891329
 ---------------------------------------- --------------------------------------
 (State of incorporation or organization)  (I.R.S. Employer Identification No.)

         World Financial Center,
            New York, New York                             10281
- ----------------------------------------- --------------------------------------
 (Address of principal executive offices)                (Zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:

           Title of each class              Name of each exchange on which
           to be so registered              each class is to be registered
           -------------------              ------------------------------
        PPLUS Class A 7.25% Trust             New York Stock Exchange
        Certificates Series DCNA-1
           (the "Certificates")

         If this form relates to the registration of a class of securities
pursuant to Section 12(b) of the Exchange Act and is effective pursuant to
General Instruction A.(c), check the following box.  [X]

         If this form relates to the registration of a class of securities
pursuant to Section 12(g) of the Exchange Act and is effective pursuant to
General Instruction A.(d), check the following box. [ ]

Securities Act registration file number to which this form relates: 333-88166-17

Securities to be registered pursuant to Section 12(g) of the Act:  None



INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 1.  Description of Registrant's Securities to be Registered.

         The description of the Certificates to be registered hereunder is set
         forth under the captions entitled: "Description of the Trust
         Certificates"; "Description of the Underlying Securities"; and "United
         States Federal Income Tax Consequences" in the registrant's preliminary
         prospectus supplement dated May 14, 2004 (the "Preliminary Prospectus
         Supplement"), and "Description of the Certificates" in the registrant's
         prospectus dated October 24, 2002 (the "Prospectus"), which
         descriptions are incorporated herein by reference. The registrant filed
         the Prospectus and Preliminary Prospectus Supplement with the
         Securities and Exchange Commission (the "SEC") on May 18, 2004 pursuant
         to Rule 424(b)(2) under the Securities Act of 1933, as amended.

Item 2.  Exhibits

         1.    Amended and Restated Certificate of Incorporation of the
               registrant is set forth as Exhibit 3.1 to the registrant's
               Registration Statement on Form S-3 (Registration No. 333-29015,
               dated September 17, 1997) (the "Registration Statement") and is
               incorporated herein by reference.

         2.    By-laws of the registrant are set forth as Exhibit 3.2 to the
               Registration Statement and are incorporated herein by reference.

         3.    Standard Terms for Trust Agreements dated February 20, 1998 (the
               "Standard Terms") are set forth as Exhibit 4.1 to the Form 8-K
               dated February 20, 1998 and filed by the registrant with the SEC
               on February 27, 1998 and are incorporated herein by reference.

         4.    Form of Series Supplement (the "Series Supplement") to the
               Standard Terms.

         5.    Form of the Certificate.





                                   SIGNATURE

         Pursuant to the requirements of Section 12 of the Securities Exchange
Act of 1934, the registrant has duly caused this registration statement to be
signed on its behalf by the undersigned, thereto duly authorized.


                                              MERRILL LYNCH DEPOSITOR, INC.


Date: May 27, 2004                            By:   /s/ Michael F. Connor
                                                  ------------------------------
                                                  Name:  Michael F. Connor
                                                  Title: President