______________________________________________________________________________
                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 ______________________________________________________________________________

                                  FORM 20-F/A
                                (Amendment No.2)

/_/   REGISTRATION STATEMENT PURSUANT TO SECTION 12(b) OR 12(g) OF THE
      SECURITIES EXCHANGE ACT OF 1934
                                      -OR-
/X/   ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES
      EXCHANGE ACT OF 1934 for the fiscal year ended January 31, 2004
                                      -OR-
/_/   TRANSITION REPORT PURSUANT TO SECTION 13 or 15(d) OF THE SECURITIES
      EXCHANGE ACT OF 1934 for the transition period ______ from ______.

                        Commission File Number: 0-30906

 ______________________________________________________________________________
                             DataMirror Corporation
             (Exact name of Registrant as specified in its Charter)


                                    Ontario
                        (Jurisdiction of Incorporation)


                            3100 Steeles Avenue East
                                   Suite 1100
                            Markham, Ontario, Canada
                                    L3R 8T3
                                 (905) 415-0310
             (Address of Registrant's Principal Executive Offices)

 ______________________________________________________________________________

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

Securities registered pursuant to Section 12(g) of the Act: Common Shares,
no par value

Securities for which there is a reporting obligation pursuant to Section 15(d)
of the Act: None

Indicate the number of outstanding shares of each class of the issuer's classes
of capital or common stock as of the close of the period covered by the annual
report.

As at January 31, 2004, 11,364,952 Common Shares were issued and outstanding.

Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports) and (2) has been subject to such
filing requirements for the past 90 days.

         Yes      /X/           No   /_/

Indicate by check mark which financial statement item the registrant has
elected to follow.

         Item 17  /X/           Item 18  /_/

<PAGE>


                                EXPLANATORY NOTE

DataMirror Corporation (the "Company") is filing this Amendment No.2 to its
Form 20-F for the fiscal year ended January 31, 2004 solely to disclose that
the Nasdaq Stock Market, Inc. ("Nasdaq") granted the Company an exemption from
Nasdaq's quorum requirements for shareholder meetings.

Nasdaq Exemptions

Nasdaq granted the Company an exemption from its requirement that the minimum
quorum for a shareholder meeting is 33-1/3% of the outstanding common shares of
the Company on the basis that such requirement was not consistent with the
Company's home country practice. The Company's by-laws provide that the quorum
requirements for a meeting of the Company's shareholders are met if there are
"two or more persons present in person, each being a shareholder entitled to
vote thereat or a duly appointed proxyholder or representative for a
shareholder so entitled and together holding shares representing at least 5% of
the voting shares of the Corporation." The Company's quorum requirements comply
with the requirements of the Business Corporations Act (Ontario) and are
consistent with that of other companies with common shares listed on the
Toronto Stock Exchange, the principal exchange of the Company's common shares
in Canada.

<PAGE>


                                   SIGNATURES

    The registrant hereby certifies that it meets all of the requirements for
filing on this Amendment No.2 to Form 20-F and has duly caused and authorized
the undersigned to sign this annual report on its behalf.


March 10, 2005

                                              DATAMIRROR CORPORATION


                                              By: /s/ Peter Cauley
                                                  -----------------------------
                                              Name:  Peter Cauley
                                              Title: Chief Financial Officer

<PAGE>


                                 EXHIBIT INDEX


1.1      Articles of Amalgamation of DataMirror Corporation, as currently in
         effect. (1)
1.2      By-laws of DataMirror Corporation, as currently in effect. (1)
2.1      Specimen DataMirror Corporation share certificate. (1)
2.2      DataMirror Shareholder Rights Plan, dated as of May 7, 2002. (1)
4.1      Lease pursuant to which DataMirror Corporation's UK subsidiary
         acquired rental space in London, England on November 31, 2001. (1)
4.2      DataMirror Corporation Share Purchase Plan, as currently in effect. (1)
4.3      DataMirror Corporation Executive Stock Compensation Plan, as currently
         in effect. (1)
4.4      Employment agreement between DataMirror Corporation and Mr. Nigel
         Stokes. (1)
4.5      Employment agreement between DataMirror Corporation and Mr. Kirk
         Dixon. (1)
4.6      Employment agreement between DataMirror Corporation and Mr. Herman
         Wallenburg. (1)
4.7      Pointbase, Inc. Series E Preferred Stock Purchase Agreement, dated
         June 14, 2000. (1)
6.1      Audit Committee Charter (2)
6.2      Compensation Committee Charter (2)
8.1*     List of Significant Subsidiaries
11.1     Employee Conduct Policy (2)
12.1*    Certifications of CEO and CFO Pursuant to Section 302 of the
         Sarbanes-Oxley Act of 2002
12.2*    Certification of CEO and CFO Pursuant to Section 906 of the
         Sarbanes-Oxley Act of 2002
12.3     Certifications of CEO and CFO Pursuant to Section 302 of the
         Sarbanes-Oxley Act of 2002 with respect to Amendment No. 2 to the
         Form 20-F.
13.1*    Consent of Ernst & Young LLP

---------------------
*Previously filed.

(1)  Incorporated by reference to the Company's Annual Report on Form 20-F,
     filed on June 20, 2002.
(2)  Incorporated by reference to the Company's Annual Report on Form 20-F,
     filed on June 5, 2003.

<PAGE>


                                                                   Exhibit 12.3


                                 Certification
           Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Nigel Stokes, certify that:

1.       I have reviewed this Amendment No. 2 to the annual report on Form
         20-F of DataMirror Corporation; and

2.       Based on my knowledge, this annual report does not contain any untrue
         statement of a material fact or omit to state a material fact
         necessary to make the statements made, in light of the circumstances
         under which such statements were made, not misleading with respect to
         the period covered by this annual report.



         Date:  March 10, 2005


                /s/ Nigel Stokes
                ------------------------------
                Name:   Nigel Stokes
                Title:  Chief Executive Officer


<PAGE>

                                 Certification
           Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Peter Cauley, certify that:

     1.  I have reviewed this Amendment No. 2 to the annual report on Form 20-F
         of DataMirror Corporation; and

     2.  Based on my knowledge, this annual report does not contain any untrue
         statement of a material fact or omit to state a material fact
         necessary to make the statements made, in light of the circumstances
         under which such statements were made, not misleading with respect to
         the period covered by this annual report.



         Date:  March 10, 2005


                /s/ Peter Cauley
                ------------------------------
                Name:  Peter Cauley
                Title: Chief Financial Officer