Document:

EXHIBIT 10.5

            LETTER AGREEMENT WITH W3 VENTURES, LTD DATED MAY 14, 2001

-----------------
W3 Ventures, Ltd.
-----------------
8 Elm Street
Greenvale, NY 11548
(516) 396-1261
(508) 590-8474  eFax
E-mail    ritholtz@aol.com

May 14, 2001

Richard Lang, CEO
Burst.com
500 Sansome St.
San Francisco, CA 94111

Dear Richard:

Please let this letter confirm our  understanding  that Barry L. Ritholtz and W3
Ventures  ("Advisors") will act as an introductory agent for Burst.com ("BRST ")
and any of its affiliates,  and will undertake to identify  persons or entities,
including  partners,  companies,  institutions  and/or  investors  (collectively
"Introduction")   interested  in  completely   or  partially   purchasing   (the
"Transaction") the Company.

BRST  agrees to hold all  information  about the  Introduction  and  Transaction
confidential,  and will not  circumvent  Advisors in its dealings  pertaining to
this Introduction.

FEES: For our services, BRST will

a) In the event of a cash,  equity, or other investment made by or of any entity
introduced  by Advisors  for a period of twelve (12) months from the date of the
expiration of this  agreement,  pay an amount equal to 8% (eight percent) of the
total  purchase  price or face amount of the net  investment or proceeds for the
term of this agreement to Advisors;

b) In the event that a suitable acquirer is located by Advisors, and said entity
purchases  all or any portion of BRST,  pay to Advisors (by  certified  check) a
dollar amount equal to 5% (five  percent) of the total purchase  price,  whether
the purchase be in cash, equity, or assumption of debt.

TERM:  This  agreement  provides  for the  introduction  by Advisors to BRST for
specifically  identified  "Introductions and/or a direct investment by Advisors,
partners, directors or associates, and by institutions or qualified individuals,
for a  period  of  twelve  (12)  months."  The term may be  extended  by  mutual
agreement between Advisors and the Company.

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EXPENSES:  BRST  shall  reimburse  Advisors  for actual  out-of-pocket  expenses
relating to this  agreement,  including the cost of Advisor's  counsel,  if any.
Advisors will not incur any  reimbursement  expenses  without prior approval and
consent from BRST.

INDEMNITY:  In the event that Advisors  becomes  involved in any capacity in any
action,  proceeding or investigation with any matter referred to in this letter,
BRST will  reimburse  Advisors  for its legal and  other  expenses  incurred  in
connection  therewith.  BRST also will  indemnify  Advisors  against any losses,
claims,  damages,  or  liabilities  to which  Advisors  may  become  subject  in
connection with any matter referred to in this letter, except to the extent that
any such loss, claim,  damage, or liability results from the recklessness or bad
faith of Advisors performing the services that are the subject of this letter.

This letter shall be deemed to have been made and delivered in New York City and
shall be governed as to the validity interpretation and construction, effect and
in all other  respects by the internal  laws of the State of New York.  BRST (1)
agrees that any legal suit,  action or proceeding  arising out of or relating to
this letter shall be instituted  exclusively  in New York State  Supreme  Court,
County of New York or in the  United  States  District  Court  for the  Southern
District  of New York,  (2)  waives  any  objection  which  BRST may have now or
hereafter  to the  venue  of any  such  suit,  action  or  proceeding,  and  (3)
irrevocably  consents to the  jurisdiction  of the New York State Supreme Court,
County of New York or in the  United  States  District  Court  for the  Southern
District  of New York,  and agrees  that  service  of process  upon BRST mail by
certified  mail to the  Company's  address  shall be  deemed  in  every  respect
effective  service  of process  upon the  Company,  in any such suit,  action or
proceeding.

Where  BRST  appears  in  this  agreement,  it  is  understood  to  include  any
principals, agents or affiliates of the Company.

Please confirm that the foregoing is in accordance  with your  understanding  by
signing and returning to us the duplicate of this letter attached hereto,  which
shall constitute a binding agreement.

Very Truly Yours,                               By:

                                                   ______________________
Barry L. Ritholtz W3 Ventures                      Richard Lang
May 14, 2001                                       CEO Burst.com

                                                   Date:EXHIBIT 10.6

       LENDER CREDITOR AGREEMENT WITH GORDON ROCK DATED NOVEMBER 16, 2001

                            LENDER CREDITOR AGREEMENT

     THIS LENDER CREDITOR AGREEMENT IS ENTERED INTO EFFECTIVE AS OF NOVEMBER 16,
2001  ("Creditor  Agreement"),   by  Burst.com,  Inc.,  a  Delaware  corporation
("Debtor"), in favor of GORDON ROCK ("Secured Party").

                                    Recitals

A.  Secured  Party has made  numerous  advances  of money and  extended  certain
financial  accommodations to Debtor pursuant to various promissory notes entered
into prior to the date  hereof as set forth on Schedule 1 attached  hereto,  all
due and payable on, or before, November 21, 2001, (collectively, the "Loans").

B. Debtor has  previously  granted  Secured Party a security  interest in all of
Debtor's assets pursuant to a Security Agreement dated effective as of April 18,
2001 (the "Security Agreement").

C.  Secured  Party  has  agreed  to  extend  the due  date on the  Loans  for an
additional  year  subject to Debtor  entering  into this  Creditor  Agreement to
provide for  certain  financial  covenants  and other  restrictions  on Debtor's
ability to take certain actions,  including but not limited to incurring further
debt.

                                    Agreement

     NOW, THEREFORE,  in order to induce Secured Party to extend the due date on
the  Loans  through   November  21,  2002,  and  for  other  good  and  valuable
consideration,  the receipt and adequacy of which are hereby  acknowledged,  and
intending to be legally bound, the parties hereby represent,  warrant,  covenant
and agree, as applicable, as follows:

     1. LOAN EXTENSION. Secured Party hereby extends the due date on each of the
Loans to November 21, 2002, in consideration of the covenants and obligations of
Debtor  set  forth  in  Section  2 below.  Each of the  Loans  shall  be  become
immediately  due and  payable  if there is a  material  breach of this  Creditor
Agreement by Debtor or an "Event of Default" under the Security Agreement.

     2.  DEBTOR  COVENANTS.  So  long  as any  amount  under  the  Loans  remain
outstanding or there remains  outstanding any Secured  Obligation (as defined in
the Security  Agreement),  Debtor  covenants and agrees that, in addition to the
covenants set forth in Section 6 of the Security Agreement, it shall not without
the written consent of Debtor which shall not be unreasonably withheld:

          i.   Incur  any new  indebtedness  or  expense  in  excess  of  $2,500
               individually  with  respect to any  third-party  or any  officer,
               director  or employee of Debtor  (except  for  employee  salaries
               approved  by the Board of  Directors  as of the date  hereof  and
               reasonable  and  necessary  legal  and  accounting   professional
               services  as  Debtor's  CEO shall  request in  consultation  with
               Secured Party);

<PAGE>

          ii.  Issue any  additional  securities,  including  but not limited to
               stock,  options,   warrants  or  convertible  notes  (except  for
               securities  existing  as of the date  hereof  and any  securities
               issuable upon exercise or conversion of such securities);

          iii. Sell or  license  any  assets  of Debtor  except in the  ordinary
               course of business;

          iv.  File  any  lawsuits  or  take  any  other  legal  action  against
               third-parties except as may be required by applicable law;

          v.   Merge or otherwise effect a reorganization of Debtor; or

          vi.  Amend Debtor's Certificate of Incorporation or Bylaws.

     3. MISCELLANEOUS.

          3.1 No  Waiver.  None of the  terms  or  provisions  of this  Creditor
Agreement may be waived, altered, modified or amended except by an instrument in
writing, duly executed by Debtor and Secured Party.

          3.2 Termination of this Creditor  Agreement.  This Creditor  Agreement
shall  terminate  upon the  payment  and  performance  in full of the  Loans and
Secured Obligations.

          3.3 Successor and Assigns. This Creditor Agreement and all obligations
of Debtor  hereunder shall be binding upon the successors and assigns of Debtor,
and shall,  together  with the rights and remedies of Secured  Party  hereunder,
inure  to  the  benefit  of  Secured  Party,  any  future  holder  of any of the
indebtedness and their respective successors and assigns.

          3.4  Governing  Law.  In  all  respects,   including  all  matters  of
construction,   validity  and  performance,  this  Creditor  Agreement  and  the
obligations  arising  hereunder shall be governed by, and construed and enforced
in accordance with, the laws of the State of California  applicable to contracts
made and  performed  in such state,  without  regard to the  principles  thereof
regarding  conflict  of laws.  The  prevailing  party in any  dispute or lawsuit
arising out of or in connection  with this Creditor  Agreement shall be entitled
to recover its  reasonable  attorneys'  fees,  costs and expenses from the other
party.  Venue for all purposes  hereunder  shall be the county in which Debtor's
principal place of business is located.

     IN WITNESS  WHEREOF,  Debtor and  Secured  Party have  caused  this  Lender
Creditor  Agreement  to be  executed  and  delivered  by their  duly  authorized
principals on the date first set forth above.

SECURED PARTY                                        BURST.COM, INC.

Print Name______________________                     By: _______________________

Signature ______________________                     Printed
                                                     Name: _____________________
________________________________
                                                     Title: ____________________

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