Page 1 of 12 Pages

                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549

                                 SCHEDULE 13G

                   Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*


                           INFORMATION HOLDINGS INC.
             -----------------------------------------------------
                                (Name of Issuer)

                                    COMMON
             -----------------------------------------------------
                         (Title of Class of Securities)

                                   456727106
             -----------------------------------------------------
                                 (CUSIP Number)


Check the following box if a fee is being paid with this statement [ ].
(A fee is not required only if the filing person:  (1) has a previous statement
on file reporting beneficial ownership of more than five percent of the class
of securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7.)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).



                                            Page 2 of 12 Pages

Amendment No. 1 to Schedule 13G (continued)

CUSIP No.   456727106
--------------------------------------------------------------------------------
   1   NAME OF REPORTING PERSON
       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

       Baron Capital Group, Inc.
--------------------------------------------------------------------------------
   2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                             (a)  [ ]
                                                             (b)  [ ]
--------------------------------------------------------------------------------
   3   SEC USE ONLY


--------------------------------------------------------------------------------
   4   CITIZENSHIP OR PLACE OF ORGANIZATION

       New York
--------------------------------------------------------------------------------
   NUMBER OF      5    SOLE VOTING POWER
     SHARES                    0
  BENEFICIALLY    --------------------------------------------------------------
    OWNED BY      6    SHARED VOTING POWER
      EACH             1,155,000
   REPORTING      --------------------------------------------------------------
     PERSON       7    SOLE DISPOSITIVE POWER
      WITH                     0
                  --------------------------------------------------------------
                  8    SHARED DISPOSITIVE POWER
                       1,190,000
--------------------------------------------------------------------------------
   9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       1,190,000
--------------------------------------------------------------------------------
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*


--------------------------------------------------------------------------------
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

       5.7%
--------------------------------------------------------------------------------
  12   TYPE OF REPORTING PERSON*

       HC, CO
--------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT



                                            Page 3 of 12 Pages

Amendment No. 1 to Schedule 13G (continued)

CUSIP No. 456727106
--------------------------------------------------------------------------------
   1   NAME OF REPORTING PERSON
       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

       BAMCO, Inc.
--------------------------------------------------------------------------------
   2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                             (a)  [ ]
                                                             (b)  [ ]
--------------------------------------------------------------------------------
   3   SEC USE ONLY


--------------------------------------------------------------------------------
   4   CITIZENSHIP OR PLACE OF ORGANIZATION

       New York
--------------------------------------------------------------------------------
   NUMBER OF      5    SOLE VOTING POWER
     SHARES
  BENEFICIALLY    --------------------------------------------------------------
    OWNED BY      6    SHARED VOTING POWER
      EACH             1,155,000
   REPORTING      --------------------------------------------------------------
     PERSON       7    SOLE DISPOSITIVE POWER
      WITH
                  --------------------------------------------------------------
                  8    SHARED DISPOSITIVE POWER
                       1,190,000
--------------------------------------------------------------------------------
   9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       1,190,000
--------------------------------------------------------------------------------
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*


--------------------------------------------------------------------------------
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

       5.7%
--------------------------------------------------------------------------------
  12   TYPE OF REPORTING PERSON*

       IA, CO
--------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT



                                         Page 4 of 12 Pages

Amendment No. 1 to Schedule 13G (continued)

CUSIP No. 456727106
--------------------------------------------------------------------------------
   1   NAME OF REPORTING PERSON
       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

       Baron Capital Management
--------------------------------------------------------------------------------
   2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                             (a)  [ ]
                                                             (b)  [ ]
--------------------------------------------------------------------------------
   3   SEC USE ONLY


--------------------------------------------------------------------------------
   4   CITIZENSHIP OR PLACE OF ORGANIZATION

       New York
--------------------------------------------------------------------------------
   NUMBER OF      5    SOLE VOTING POWER
     SHARES
  BENEFICIALLY    --------------------------------------------------------------
    OWNED BY      6    SHARED VOTING POWER
      EACH             0
   REPORTING      --------------------------------------------------------------
     PERSON       7    SOLE DISPOSITIVE POWER
      WITH
                  --------------------------------------------------------------
                  8    SHARED DISPOSITIVE POWER
                       0
--------------------------------------------------------------------------------
   9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       0
--------------------------------------------------------------------------------
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*


--------------------------------------------------------------------------------
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

       0%
--------------------------------------------------------------------------------
  12   TYPE OF REPORTING PERSON*

       IA, CO
--------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT






                                            Page 5 of 12 Pages

Amendment No. 1 to Schedule 13G (continued)

CUSIP No. 456727106
--------------------------------------------------------------------------------
   1   NAME OF REPORTING PERSON
       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

       Ronald Baron
--------------------------------------------------------------------------------
   2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                             (a)  [ ]
                                                             (b)  [ ]
--------------------------------------------------------------------------------
   3   SEC USE ONLY


--------------------------------------------------------------------------------
   4   CITIZENSHIP OR PLACE OF ORGANIZATION

       USA
--------------------------------------------------------------------------------
   NUMBER OF      5    SOLE VOTING POWER
     SHARES
  BENEFICIALLY    --------------------------------------------------------------
    OWNED BY      6    SHARED VOTING POWER
      EACH             1,155,000
   REPORTING      --------------------------------------------------------------
     PERSON       7    SOLE DISPOSITIVE POWER
      WITH
                  --------------------------------------------------------------
                  8    SHARED DISPOSITIVE POWER
                       1,190,000
--------------------------------------------------------------------------------
   9   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

       1,190,000
--------------------------------------------------------------------------------
  10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*


--------------------------------------------------------------------------------
  11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

       5.7%
--------------------------------------------------------------------------------
  12   TYPE OF REPORTING PERSON*

       HC, IN
--------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT



                                            Page 6 of 12 Pages

Item 1.

        (a)  Name of Issuer:
               INFORMATION HOLDINGS INC.
        (b)  Address of Issuer's Principal Executive Offices:
               2777 Summer Street, Suite 209
               Stamford, CT 06905

Item 2.

        (a)  Name of Persons Filing:
               Baron Capital Group, Inc. ("BCG")
               BAMCO, Inc. ("BAMCO")
               Baron Capital Management ("BCM")
               Ronald Baron
        (b)  Address of Principal Business Office:
               767 Fifth Avenue
               New York, NY 10153
        (c)  Citizenship:
               BCG, and BAMCO are New York corporations.
               BCM is a series of a Massachusetts business trust
               and Ronald Baron is a citizen of the United States.
        (d)  Title of Class Securities:
               COMMON
        (e)  CUSIP Number:
               456727106


Item 3.    PERSONS FILING:

        BCG and Ronald Baron are:
              (g) Parent holding companies, in accordance with
                  Section 240.13d-1(b)(ii)(G)
        BAMCO is:
              (e) Investment Adviser registered under Section 203 of
                  the Investment Advisers Act of 1940
        BCM is:
              (d) Investment Company registered under Section 8 of
                  the Investment Company Act
        All persons filing are:
              (h) Group, in accordance with Rule 13d-1(b)(1)(ii)(F)



                                            Page 7 of 12 Pages


Item 4.    OWNERSHIP^

         (a) Amount Beneficially Owned as of December 31, 2003:

               BCG:            1,190,000 shares
               BAMCO:          1,190,000 shares
               BCM:                    0 shares
               Ronald Baron:   1,190,000 shares

         (b) Percent of Class:

               BCG:            5.7%
               BAMCO:          5.7%
               BCM:              0%
               Ronald Baron:   5.7%




     ^BCG and Ronald Baron disclaim beneficial ownership of shares held by their
controlled  entities (or the investment  advisory clients thereof) to the extent
such shares are held by persons other than BCG and Ronald Baron.  BAMCO disclaim
beneficial  ownership of shares held by their investment advisory clients to the
extent such shares are held by persons other than BAMCO, and their affiliates.


                                                Page 8 of 12 Pages

          (c) Number of shares as to which such person has:
                (i)   sole power to vote or direct the vote:
                          BCG:                    0
                          BAMCO:                  0
                          BCM:                    0
                          Ronald Baron:           0
                (ii)  shared power to vote or direct the vote:
                          BCG:            1,155,000
                          BAMCO:          1,155,000
                          BCM:                    0
                          Ronald Baron:   1,155,000
                (iii) sole power to dispose or to direct
                      the disposition of:*
                          BCG:                    0
                          BAMCO:                  0
                          BCM:                    0
                          Ronald Baron:           0
                (iv)  shared power to dispose or direct
                      the disposition of:*
                          BCG:            1,190,000
                          BAMCO:          1,190,000
                          BCM:                    0
                          Ronald Baron:   1,190,000

Item 5.  OWNERSHIP OF 5% OR LESS OF A CLASS
         Not applicable.

Item 6.  OWNERSHIP OF MORE THAN 5% ON BEHALF OF ANOTHER PERSON
         No Material Change

Item 7.  IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
         ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT
         HOLDING COMPANY

         BAMCO is a subsidiary of BCG. BSC is an investment advisory
         client of BAMCO. Ronald Baron owns a controlling interest in BCG.

Item 8.  IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP

         See Item 3.


     * By  virtue  of  investment  advisory  agreements  with  their  respective
clients,  BAMCO has been given the  discretion to dispose or the  disposition of
the securities in the advisory accounts. All such discretionary agreements,  are
however, revocable.


                                                 Page 9 of 12 Pages

Item 9.  NOTICE OF DISSOLUTION OF GROUP

         Not applicable.

Item 10. Certification

     By signing  below I certify  that,  to the best of my knowledge and belief,
the  securities  referred  to above  were  acquired  in the  ordinary  course of
business  and were not acquired for the purpose of and do not have the effect of
changing or  influencing  the control of the issuer of such  securities and were
not acquired in connection  with or as a participant in any  transaction  having
such purposes or effect.

Signature

     After  reasonable  inquiry and to the best of my  knowledge  and belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.

  Date:  February 13, 2004

                        Baron Capital Group, Inc.,
                        BAMCO, Inc., and Baron Small Cap Fund
                        By:

                        /s/ Ronald Baron
                        _______________________________________
                            Ronald Baron, Chairman and CEO


                        Ronald Baron, Individually

                        By:

                        /s/ Ronald Baron
                        _______________________________________
                            Ronald Baron


                                             Page 10 of 12 Pages


                    Joint Filing Agreement


     The undersigned  each hereby agree that the Schedule 13G dated February 13,
2004, which relates to the ordinary stock of Information  Holdings Inc. is to be
filed jointly on behalf of each of them for the reasons stated therein,  and any
amendments thereto shall be filed jointly by the undersigned.

Dated:  February 13, 2004

                        Baron Capital Group, Inc.,
                        BAMCO, Inc., and Baron Small Cap Fund
                        By:

                        /s/ Ronald Baron
                        _______________________________________
                            Ronald Baron, Chairman and CEO



                        Ronald Baron, Individually
                        By:

                        /s/ Ronald Baron
                        _______________________________________
                            Ronald Baron