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


                          SCHEDULE 13G


            Under the Securities Exchange Act of 1934
                    (Amendment No. _1__)*

                         Burst.com, Inc.
     (formerly known as Instant Video Technologies, Inc.)
      ______________________________________________________
                        (Name of Issuer)

               Common Stock, $ .00001 Par Value
      ______________________________________________________
                 (Title of Class of Securities)

                         45774V407
               ____________________________________
                         (CUSIP Number)

                     December 31. 2000
     -------------------------------------------------------
     (Date of Event Which Requires Filing of this Statement)


Check the appropriate box to designate the rule pursuant to which
this Schedule is filed:

     -x--      Rule 13d-1(b)
     ----      Rule 13d-1(c)
     ----      Rule 13d-1(d)


*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).






CUSIP No. 45774V407                13G         Page  2   of   14
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(1)  NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     Special Situations Fund III, L.P. ("The Fund") F13-3737427
     MGP Advisers Limited Partnership* ("MGP") F13-3263120
----------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
     Instructions)
  (a) | |
  (b) |X|
----------------------------------------------------------------
(3)  SEC USE ONLY
----------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware
----------------------------------------------------------------
 NUMBER OF     (5) SOLE VOTING POWER   See Marxe/Greenhouse
   SHARES       -------------------------------------------------
BENEFICIALLY   (6) SHARED VOTING POWER             None
 OWNED BY      -------------------------------------------------
   EACH        (7) SOLE DISPOSITIVE POWER  See Marxe/Greenhouse
 REPORTING     -------------------------------------------------
PERSON WITH:   (8) SHARED DISPOSITIVE POWER        None
----------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICALLY OWNED BY EACH REPORTING PERSON

     375,000 (all warrants)
----------------------------------------------------------------
(10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES (See Instructions)

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

      1.8
----------------------------------------------------------------
(12) TYPE OF REPORTING PERSON (See Instructions)

     IV/IA
----------------------------------------------------------------

* AWM Investment Company, Inc., a Delaware corporaiton is the
General Partner of this entity.








CUSIP No. 45774V407                13G         Page  3   of   14
----------------------------------------------------------------
(1)  NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     Special Situations Private Equity Fund, L.P.   F13-3916551
     ("SSPE")
     MG Advisers L.L.C. ("MG") F13-3916549
----------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
     Instructions)
  (a) | |
  (b) |X|
----------------------------------------------------------------
(3)  SEC USE ONLY
----------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware
----------------------------------------------------------------
 NUMBER OF     (5) SOLE VOTING POWER   See Marxe/Greenhouse
   SHARES       -------------------------------------------------
BENEFICIALLY   (6) SHARED VOTING POWER             None
 OWNED BY      -------------------------------------------------
   EACH        (7) SOLE DISPOSITIVE POWER  See Marxe/Greenhouse
 REPORTING     -------------------------------------------------
PERSON WITH:   (8) SHARED DISPOSITIVE POWER        None
----------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICALLY OWNED BY EACH REPORTING PERSON

    250,000 (all warrants)
----------------------------------------------------------------
(10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES (See Instructions)

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

      1.2
----------------------------------------------------------------
(12) TYPE OF REPORTING PERSON (See Instructions)

     IV/IA
----------------------------------------------------------------











CUSIP No. 45774V407           13G             Page 4  of  14
----------------------------------------------------------------
(1)  NAME OF REPORTING PERSON
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     Special Situations Cayman Fund, L.P. ("CAY") 98-0132442
     AWM Investment Comapny, Inc.  ("AWM") 11-3086452
----------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
     Instructions)

  (a) | |
  (b) |X|
----------------------------------------------------------------
(3)  SEC USE ONLY

----------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     Cayman Islands, Delaware
----------------------------------------------------------------
 NUMBER OF     (5) SOLE VOTING POWER   See Marxe/Greenhouse
  SHARES       -------------------------------------------------
BENEFICIALLY   (6) SHARED VOTING POWER            None
 OWNED BY      -------------------------------------------------
   EACH        (7) SOLE DISPOSITIVE POWER  See Marxe/Greenhouse
 REPORTING     -------------------------------------------------
PERSON WITH:   (8) SHARED DISPOSITIVE POWER       None
----------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICALLY OWNED BY EACH REPORTING PERSON
 125,000 (all warrants)
----------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES (See Instructions)

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

   .6
----------------------------------------------------------------
(12) TYPE OF REPORTING PERSON*

     IV/IA
----------------------------------------------------------------









CUSIP No. 45774V407                13G         Page  5   of   14
----------------------------------------------------------------
(1)  NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)

     Special Situations Technology Fund, L.P. ("SST")
      F13-3937585
     SST Advisers LLC  ("SSTA") F13-3937583
----------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
     Instructions)
  (a) | |
  (b) |X|
----------------------------------------------------------------
(3)  SEC USE ONLY
----------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     Delaware
----------------------------------------------------------------
 NUMBER OF     (5) SOLE VOTING POWER   See Marxe/Greenhouse
   SHARES       -------------------------------------------------
BENEFICIALLY   (6) SHARED VOTING POWER             None
 OWNED BY      -------------------------------------------------
   EACH        (7) SOLE DISPOSITIVE POWER  See Marxe/Greenhouse
 REPORTING     -------------------------------------------------
PERSON WITH:   (8) SHARED DISPOSITIVE POWER        None
----------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICALLY OWNED BY EACH REPORTING PERSON

     250,000 (all warrants)
----------------------------------------------------------------
(10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES (See Instructions)

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

      1.2
----------------------------------------------------------------
(12) TYPE OF REPORTING PERSON (See Instructions)

     IV/IA
----------------------------------------------------------------










CUSIP No. 45774V407         13G         Page  6  of  14 Pages
----------------------------------------------------------------
(1)  NAME OF REPORTING PERSON
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY).

     Austin W. Marxe
     David M. Greenhouse
----------------------------------------------------------------
(2)  CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See
     Instructions)

  (a) | |
  (b) |X|
----------------------------------------------------------------
(3)  SEC USE ONLY

----------------------------------------------------------------
(4)  CITIZENSHIP OR PLACE OF ORGANIZATION

     United States of America
----------------------------------------------------------------
 NUMBER OF     (5) SOLE VOTING POWER        1,000,000
  SHARES       -------------------------------------------------
BENEFICIALLY   (6) SHARED VOTING POWER           None
 OWNED BY      -------------------------------------------------
   EACH        (7) SOLE DISPOSITIVE POWER   1,000,000
 REPORTING     -------------------------------------------------
PERSON WITH:    (8) SHARED DISPOSITIVE POWER      None
----------------------------------------------------------------
(9)  AGGREGATE AMOUNT BENEFICALLY OWNED BY EACH REPORTING PERSON

     1,000,000 (all warrants)
----------------------------------------------------------------
(10) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES (See Instructions)

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

     4.7
----------------------------------------------------------------
(12) TYPE OF REPORTING PERSON*

     IN
----------------------------------------------------------------









                                        Page 7 of 14 Pages

Item 1.
(a)  Name of Issuer:  Burst.com, Inc.
(b)  Address of Issuer's Principal Executive Offices:
     500 Sabsoime Street, Ste 503, San Francisco, CA  94111
Item 2.
(a)  Name of Person Filing:  This statement is filed on behalf
of (i) Special Situations Fund III , L.P., a Delaware limited
partnership ("SSF III"); (ii) Special Situations Private
Equity Fund, L.P., a Delaware limited partnership ("SSPE")
(iii) Special Situations Cayman Fund, L.P. , a Cayman Islands
limited partnership (the "Cayman Fund"); (iv) Special
Situations Technology Fund, L.P., a Delaware limited
partnership ("SST"); (v) MGP Advisers Limited Partnership, a
Delaware limited partnership,("MGP"); (vi) MG Advisers L.L.C.,
a New York limited liability company ("MG"); (vii) AWM
Investment Company, Inc., a Delaware corporation ("AWM");
(viii SST Advisers L.L.C., a Delaware limited liability
company ("SSTA"); (ix)) Austin W. Marxe and (x) David
Greenhouse.  Each of the foregoing is hereinafter individually
referred to as a "Reporting Person" and collectively as the
"Reporting Persons."
(b)  Address of Principal Business Office or, if none,
Residence:   The principal office and business address of the
Reporting Persons, other than the Cayman Fund, is 153 East 53
Street, New York, New York 10022.  The principal office and
business address of the Cayman Fund is c/o CIBC Bank and Trust
                                   Page 8 of 14 Pages
 Company (Cayman) Limited, CIBC Bank Building, P.O. Box 694,
Grand Cayman, Cayman Islands,  British West Indies.
(c) Citizenship:  SSF III, SSPE, SST, and MGP are Delaware
limited partnerships.  MG is a New York limited liability
company. AWM is a Delaware corporaiton and SSTA is a Delaware
limited liability company.  The Cayman Fund was formed under
the laws of the Cayman Island.  Austin W. Marxe and David M.
Greenhouse are United States citizens.
The principal business of SSF III, SSPE, SST and the Cayman
Fund (individually, a "Fund" and, collectively, the "Funds")
is to invest in, sell, convey, transfer, exchange and
otherwise trade in principally equity and equity related
securities.  The principal business of MGP is to act as
general partner of and investment adviser to SSF III.   The
principal business of MG is to act as the general partner of
and the investment adviser to SSPE.  The principal business of
SSTA is to act as general partner of and investment adviser to
SST.  The principal business of AWM is to act as general
partner of MGP and general partner of and investment adviser
to the Cayman Fund.  MGP, MG, SSTA and AWM are referred to
herein, individually, as an "Adviser" and, collectively, as
the "Advisers."   The principal occupation of Austin W. Marxe
and David Greenhouse is to serve as officers, directors and
members or principal shareholders of the Advisers.
2(d)      Title of Class of Securities: See cover sheets.
(e)       CUSIP Number:  See cover sheets.
                                   Page 9 of 14 Pages
Item 3.   If this statement is filed pursuant to $240.13d-1(b)
          or 240.13d-2(b), check whether the person filing is
          a:
(a) ( )   Broker or Dealer registered under section 15 of the
          Act;
(b) ( )   Bank as defined in section 3(a) (6) of the Act;
(c) ( )   Insurance Company as defined in section 3(a) (19) of
          the Act;
(d) (x)   Investment Company registered under section 8 of the
          Investment Company Act of 1940;
(e) (x)   An Investment Adviser in accordance with $240.13d
          -1(b)(I)(ii)(E);
(f) ( )   An employee benefit plan or endowment fund in
          accordance with $240.13d-1(b)(I)(ii)(F);
(g) (x)   A parent holding company or control person in
          accordance with $240.13d-1(b)(1)(ii)(G);
(h) ( )   A savings association as defined in Section 3(b) of
          the Federal Deposit Insurance Act;
(i) ( )   A church plan that is excluded from the definition
          of an investment company under section 3(c)(14) of
          the Investment Company Act of 1940;
(j) ( )   Group, in accordance with $240.13d-1(b)(1)(ii)(J).
See Exhibit A attached hereto.
Item 4.   Ownership:
(a)  Amount Beneficially Owned: 1,000,000 shares of Common
Stock are beneficially owned by Austin W. Marxe and David
                                        Page 10 of 14 Pages
     Greenhouse; of which 375,000 warrants are owned by SSF
     III, 250,000 warrants are owned by SSPE,  125,000
     warrants are owned by CAY, and 250,000 warrants are owned
     by SST.
 (b)  Percent of Class:  4.7 percent of the Common Stock are
     beneficially owned by Austin Marxe and David Greenhouse.
     1.8 percent of the Common Stock are beneficially owned by
     SSF III, 1.2 percent are beneficially owned by SSPE, .6
     percent are owned by the Cayman Fund, and 1.2 percent of
     the common stock are owned by SST.
(c)  Number of Shares as to which the person has Rights to
 Vote and/or Dispose of Securities:  SSF III, SSPE, CAY, SST,
MGP, MG, AWM and SSTA have sole power to vote or to direct the
vote and to dispose or to direct the disposition of all
securities reported hereby which are respectively beneficially
owned by each Fund and its Adviser.
Austin Marxe and David Greenhouse have shared power to vote or
to direct the vote of and to dispose or to direct the
disposition of securities reported hereby which are
beneficially owned by Austin Marxe and David Greenhouse by
virtue of being Executive Officers of the Investment Advisers.
  Item 5. Ownership of Five Percent or Less of a Class:  If
this satement is being filed to report the fact that as of



                                   Page 11 of 14 Pages
     the date hereof the reporting person has ceased to be the
     beneficial owner of more that five percent of the class
     of securities, check the following   x .
     Item 6.Ownership of More than Five Percent on Behalf of
     Another Person:  SSF III, SSPE, CAY and SST, as owners of
     the securities in question, have the right to receive any
     dividends from, or proceeds from the sale of, such
     securities.
Item 7. Identification and Classification of the Subsidiary
     Which Acquired the Security being Reported on By the
     Parent Holding Company:  See Exhibit A attached hereto.
Item 8. Identification and Classification of Members of the
      Group:  Not applicable
Item 9. Notices 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 and are held in the ordinary course of
     business and were not acquired and are not held for the
     purpose of or with the effect of changing or influencing
     the control of the issuer of the securities and were not
     acquired and are not held in connection with or as a
     participant in any transaction having that purpose or
     effect.


                                        Page 12 of 14 Pages
                          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.

Dated: February 12, 2001


               SPECIAL SITUATIONS FUND III, L.P.


               By:/s/ Austin W. Marxe
                  Austin W. Marxe
                  Managing Director

               MGP ADVISERS LIMITED PARTERSHIP


               By:/s/ Austin W. Marxe
                   Austin W. Marxe
                   President and Chief Executive Officer


               SPECIAL SITUATIONS PRIVATE EQUITY FUND, L.P.



               By:/s/ Austin W. Marxe
                   Austin W. Marxe
                   President and Chief Executive Officer

               MG ADVISERS, L.L.C.


               By:/s/ Austin W. Marxe
                   Austin W. Marxe
                   President and Chief Executive Officer


               SPECIAL SITUATIONS CAYMAN FUND, L.P.


               By: /s/ Austin W. Marxe
                   Austin W. Marxe
                   Managing Director

                                        Page 13 of 14 Pages


               AWM INVESTMENT COMPANY, INC.


               By: /s/ Austin W. Marxe
                   Austin W. Marxe
                   President and CEO



               SPECIAL SITUATIONS TECHNOLOGY FUND, L.P.



               By:/s/ Austin W. Marxe
                   Austin W. Marxe
                   President and Chief Executive Officer

               SST ADVISERS, L.L.C.


               By:/s/ Austin W. Marxe
                   Austin W. Marxe
                   President and Chief Executive Officer





                    /s/ Austin W. Marxe
                    AUSTIN W. MARXE



                    /s/David M Greenhouse

















                              Page 14 of 14 Pages





                          EXHIBIT A


     This Exhibit explains the relationship between the
Reporting Persons.  MGP Advisers Limited Partnership (MGP), a
Delaware limited partnership, is the general partner of the
Special Situations Fund III, l.P., a Delaware Limited
Partnership.  AWM Investment Company, Inc., a Delaware
corporation, is the general partner of MGP and the general
partner of and investment adviser to the Cayman Fund. MG
Advisers, L.L.C. is the general partner of and investment
adviser to the Special Situations Private Equity Fund, L.P..
SST Adviser, L.L.C. is the general partner of and investment
adviser to Special Situations Technology Fund, L.P..   Austin
W. Marxe and David M. Greenhouse are the principal owners of
MGP, MG, AWM and SSTA and are principally responsible for the
selection, acquisition and disposition of the portfolios
securities by the investment advisers on behalf of their Fund.