EXHIBIT 10.5.10.1

      THE SECURITIES  REPRESENTED BY THIS  CERTIFICATE HAVE NOT BEEN
      REGISTERED  UNDER THE  SECURITIES ACT OF 1933, AS AMENDED (THE
      "ACT").  THE  SECURITIES  MAY  NOT  BE  SOLD,  TRANSFERRED  OR
      ASSIGNED IN THE ABSENCE OF AN EFFECTIVE REGISTRATION STATEMENT
      FOR THE SECURITIES UNDER SAID ACT, OR AN OPINION OF COUNSEL IN
      FORM, SUBSTANCE AND SCOPE CUSTOMARY FOR OPINIONS OF COUNSEL IN
      COMPARABLE  TRANSACTIONS  THAT  REGISTRATION  IS NOT  REQUIRED
      UNDER  SAID  ACT  OR  UNLESS  SOLD  PURSUANT  TO  RULE  144 OR
      REGULATIONS UNDER SAID ACT.


                          SECURED CONVERTIBLE DEBENTURE

Fairless Hills, Pennsylvania
November 26, 2003                                                        $22,500

      FOR  VALUE  RECEIVED,   DIGITAL  DESCRIPTOR  SYSTEMS,   INC.,  a  Delaware
corporation  (hereinafter called the "BORROWER"),  hereby promises to pay to the
order of AJW  OFFSHORE,  LTD. or  registered  assigns (the  "HOLDER") the sum of
Twenty-Two  Thousand Five Hundred Dollars  ($22,500),  on November 26, 2004 (the
"MATURITY Date"),  and to pay interest on the unpaid principal balance hereof at
the rate of twelve  percent  (12%) per annum from  November 26, 2003 (the "ISSUE
DATE")  until the same  becomes  due and  payable,  whether at  maturity or upon
acceleration or by prepayment or otherwise.  Any amount of principal or interest
on this Debenture  which is not paid when due shall bear interest at the rate of
fifteen percent (15%) per annum from the due date thereof until the same is paid
("DEFAULT INTEREST").  Interest shall commence accruing on the issue date, shall
be computed on the basis of a 365-day year and the actual number of days elapsed
and shall be payable, at the option of the Holder, either quarterly on March 31,
June 30,  September  30 and  December 31 of each year  beginning on December 31,
2003,  or at the time of  conversion  of the  principal  to which such  interest
relates in accordance  with Article I below.  All payments due hereunder (to the
extent not  converted  into  common  stock,  $.001 par value per  share,  of the
Borrower (the "COMMON STOCK") in accordance with the terms hereof) shall be made
in lawful  money of the  United  States  of  America  or,  at the  option of the
Borrower,  in whole or in part, in shares of Common Stock of the Borrower valued
at the then applicable  Conversion Price (as defined herein). All payments shall
be made at such  address as the Holder shall  hereafter  give to the Borrower by
written  notice  made in  accordance  with  the  provisions  of this  Debenture.
Whenever any amount expressed to be due by the terms of this Debenture is due on
any day which is not a business  day, the same shall  instead be due on the next
succeeding day which is a business day and, in the case of any interest  payment
date  which  is not the  date on  which  this  Debenture  is paid in  full,  the
extension of the due date  thereof  shall not be taken into account for purposes
of  determining  the  amount  of  interest  due on  such  date.  As used in this
Debenture,  the term  "business  day" shall mean any day other than a  Saturday,


<PAGE>

Sunday or a day on which  commercial banks in the city of New York, New York are
authorized  or  required  by law or  executive  order  to  remain  closed.  Each
capitalized term used herein, and not otherwise defined,  shall have the meaning
ascribed thereto in that certain Securities Purchase Agreement,  dated September
30, 2003,  pursuant to which this Debenture was originally issued (the "PURCHASE
AGREEMENT").

      This Debenture is free from all taxes, liens, claims and encumbrances with
respect to the issue  thereof and shall not be subject to  preemptive  rights or
other  similar  rights  of  shareholders  of the  Borrower  and will not  impose
personal  liability  upon the holder  thereof.  The  obligations of the Borrower
under this Debenture shall be secured by that certain  Security  Agreement dated
by and between the Borrower and the Holder of even date herewith.

      The following terms shall apply to this Debenture:

                          ARTICLE I. CONVERSION RIGHTS

      1.1 CONVERSION  RIGHT.  The Holder shall have the right from time to time,
and at any time on or prior to the earlier of (i) the Maturity Date and (ii) the
date of payment of the Default  Amount (as defined in Article  III)  pursuant to
Section  1.6(a) or Article III, the  Optional  Prepayment  Amount (as defined in
Section  5.1 or any  payments  pursuant to Section  1.7,  each in respect of the
remaining  outstanding  principal amount of this Debenture to convert all or any
part of the outstanding and unpaid principal amount of this Debenture into fully
paid and  non-assessable  shares of Common Stock, as such Common Stock exists on
the Issue  Date,  or any  shares of  capital  stock or other  securities  of the
Borrower into which such Common Stock shall hereafter be changed or reclassified
at the conversion price (the "CONVERSION  PRICE")  determined as provided herein
(a  "CONVERSION");  provided,  however,  that in no event  shall  the  Holder be
entitled to convert any portion of this  Debenture  in excess of that portion of
this Debenture  upon  conversion of which the sum of (1) the number of shares of
Common Stock  beneficially  owned by the Holder and its  affiliates  (other than
shares  of Common  Stock  which may be deemed  beneficially  owned  through  the
ownership of the  unconverted  portion of the  Debentures or the  unexercised or
unconverted  portion of any other security of the Borrower  (including,  without
limitation,  the  warrants  issued  by the  Borrower  pursuant  to the  Purchase
Agreement)  subject to a limitation on  conversion or exercise  analogous to the
limitations  contained  herein)  and (2) the  number of  shares of Common  Stock
issuable upon the  conversion of the portion of this  Debenture  with respect to
which  the  determination  of this  proviso  is  being  made,  would  result  in
beneficial  ownership by the Holder and its  affiliates of more than 4.9% of the
outstanding  shares  of  Common  Stock.  For  purposes  of  the  proviso  to the
immediately  preceding  sentence,  beneficial  ownership  shall be determined in
accordance  with  Section  13(d) of the  Securities  Exchange  Act of  1934,  as
amended,  and  Regulations  13D-G  thereunder,  except as otherwise  provided in
clause (1) of such  proviso.  The number of shares of Common  Stock to be issued
upon each  conversion  of this  Debenture  shall be  determined  by dividing the
Conversion Amount (as defined below) by the applicable  Conversion Price then in
effect on the date specified in the notice of  conversion,  in the form attached
hereto as Exhibit A (the "NOTICE OF  CONVERSION"),  delivered to the Borrower by
the Holder in  accordance  with Section 1.4 below;  provided  that the Notice of
Conversion  is  submitted  by  facsimile  (or by other  means  resulting  in, or
reasonably  expected to result in, notice) to the Borrower before 6:00 p.m., New
York, New York time on such conversion date (the  "CONVERSION  DATE").  The term


                                       2
<PAGE>

"CONVERSION AMOUNT" means, with respect to any conversion of this Debenture, the
sum of (1) the  principal  amount  of this  Debenture  to be  converted  in such
conversion  plus (2) accrued  and unpaid  interest,  if any,  on such  principal
amount at the interest rates  provided in this Debenture to the Conversion  Date
plus (3) Default Interest, if any, on the amounts referred to in the immediately
preceding  clauses (1) and/or (2) plus (4) at the Holder's  option,  any amounts
owed to the Holder  pursuant  to Sections  1.3 and 1.4(g)  hereof or pursuant to
Section  2(c)  of  that  certain  Registration  Rights  Agreement,  dated  as of
September  30, 2003,  executed in connection  with the initial  issuance of this
Debenture and the other Debentures  issued on the Issue Date (the  "REGISTRATION
RIGHTS AGREEMENT").

      1.2 CONVERSION PRICE.

            (a) CALCULATION OF CONVERSION  PRICE.  The Conversion Price shall be
the lesser of (i) the Variable Conversion Price (as defined herein) and (ii) the
Fixed Conversion Price (as defined herein) (subject,  in each case, to equitable
adjustments  for  stock  splits,  stock  dividends  or rights  offerings  by the
Borrower  relating  to  the  Borrower's  securities  or  the  securities  of any
subsidiary of the Borrower, combinations,  recapitalization,  reclassifications,
extraordinary distributions and similar events). The "VARIABLE CONVERSION PRICE"
shall mean the  Applicable  Percentage  (as defined  herein)  multiplied  by the
Market Price (as defined herein). "MARKET PRICE" means the average of the lowest
three (3) Trading  Prices (as  defined  below) for the Common  Stock  during the
twenty  (20)  Trading  Day period  ending one  Trading Day prior to the date the
Conversion  Notice is sent by the  Holder to the  Borrower  via  facsimile  (the
"CONVERSION DATE").  "TRADING PRICE" means, for any security as of any date, the
intraday trading price on the  Over-the-Counter  Bulletin Board (the "OTCBB") as
reported by a reliable  reporting  service mutually  acceptable to and hereafter
designated  by Holders of a  majority  in  interest  of the  Debentures  and the
Borrower or, if the OTCBB is not the principal trading market for such security,
the intraday trading price of such security on the principal securities exchange
or trading  market  where such  security  is listed or traded or, if no intraday
trading price of such security is available in any of the foregoing manners, the
average of the intraday  trading  prices of any market  makers for such security
that are listed in the "pink sheets" by the National  Quotation Bureau,  Inc. If
the Trading  Price cannot be  calculated  for such  security on such date in the
manner  provided  above,  the Trading  Price  shall be the fair market  value as
mutually determined by the Borrower and the holders of a majority in interest of
the Debentures being converted for which the calculation of the Trading Price is
required in order to determine the Conversion Price of such Debentures. "TRADING
DAY" shall  mean any day on which the  Common  Stock is traded for any period on
the OTCBB, or on the principal securities exchange or other securities market on
which the Common Stock is then being traded.  "APPLICABLE PERCENTAGE" shall mean
40.0%. The "FIXED CONVERSION PRICE" shall mean $.005.

            (b)  CONVERSION  PRICE DURING MAJOR  ANNOUNCEMENTS.  Notwithstanding
anything contained in Section 1.2(a) to the contrary,  in the event the Borrower
(i) makes a public announcement that it intends to consolidate or merge with any
other corporation (other than a merger in which the Borrower is the surviving or
continuing  corporation  and its capital stock is unchanged) or sell or transfer
all or substantially all of the assets of the Borrower or (ii) any person, group
or entity (including the Borrower) publicly announces a tender offer to purchase
50% or more of the Borrower's  Common Stock (or any other takeover  scheme) (the


                                       3
<PAGE>

date of the  announcement  referred  to in  clause  (i) or  (ii) is  hereinafter
referred  to as the  "ANNOUNCEMENT  DATE"),  then the  Conversion  Price  shall,
effective  upon  the  Announcement  Date and  continuing  through  the  Adjusted
Conversion Price  Termination Date (as defined below),  be equal to the lower of
(x) the  Conversion  Price which  would have been  applicable  for a  Conversion
occurring  on the  Announcement  Date and (y) the  Conversion  Price  that would
otherwise be in effect. From and after the Adjusted Conversion Price Termination
Date,  the  Conversion  Price shall be  determined  as set forth in this Section
1.2(a). For purposes hereof,  "ADJUSTED CONVERSION PRICE TERMINATION DATE" shall
mean,  with  respect to any  proposed  transaction  or tender offer (or takeover
scheme) for which a public  announcement  as contemplated by this Section 1.2(b)
has been  made,  the date upon  which the  Borrower  (in the case of clause  (i)
above)  or the  person,  group or  entity  (in the case of  clause  (ii)  above)
consummates or publicly announces the termination or abandonment of the proposed
transaction  or tender  offer (or  takeover  scheme)  which  caused this Section
1.2(b) to become operative.

      1.3 AUTHORIZED SHARES.  Subject to the Stockholder Approval (as defined in
Section 4(l) of the Purchase Agreement),  the Borrower covenants that during the
period  the  conversion  right  exists,  the  Borrower  will  reserve  from  its
authorized and unissued  Common Stock a sufficient  number of shares,  free from
preemptive  rights,  to provide for the  issuance of Common  Stock upon the full
conversion of this  Debenture and the other  Debentures  issued  pursuant to the
Purchase Agreement. The Borrower is required at all times to have authorized and
reserved  two times the number of shares  that is  actually  issuable  upon full
conversion of the Debentures (based on the Conversion Price of the Debentures or
the Exercise  Price of the Warrants in effect from time to time) (the  "RESERVED
AMOUNT"). The Reserved Amount shall be increased from time to time in accordance
with  the  Borrower's  obligations  pursuant  to  Section  4(h) of the  Purchase
Agreement.  The Borrower represents that upon issuance, such shares will be duly
and validly issued, fully paid and non-assessable.  In addition, if the Borrower
shall issue any  securities  or make any change to its capital  structure  which
would  change  the number of shares of Common  Stock  into which the  Debentures
shall be convertible at the then current Conversion Price, the Borrower shall at
the  same  time  make  proper  provision  so that  thereafter  there  shall be a
sufficient  number of shares of Common Stock authorized and reserved,  free from
preemptive  rights, for conversion of the outstanding  Debentures.  The Borrower
(i) acknowledges that it has irrevocably  instructed its transfer agent to issue
certificates  for the Common Stock issuable upon  conversion of this  Debenture,
and (ii)  agrees that its  issuance  of this  Debenture  shall  constitute  full
authority  to its officers and agents who are charged with the duty of executing
stock certificates to execute and issue the necessary certificates for shares of
Common Stock in accordance with the terms and conditions of this Debenture.

      If, at any time a Holder of this Debenture submits a Notice of Conversion,
and the Borrower  does not have  sufficient  authorized  but unissued  shares of
Common  Stock  available  to  effect  such  conversion  in  accordance  with the
provisions of this Article I (a "CONVERSION  DEFAULT"),  subject to Section 4.8,
the  Borrower  shall issue to the Holder all of the shares of Common Stock which
are then  available  to effect such  conversion.  The portion of this  Debenture
which the Holder included in its Conversion  Notice and which exceeds the amount
which is then  convertible  into  available  shares of Common Stock (the "EXCESS
AMOUNT") shall,  notwithstanding  anything to the contrary contained herein, not
be convertible  into Common Stock in accordance with the terms hereof until (and
at the Holder's option at any time after) the date  additional  shares of Common


                                       4
<PAGE>

Stock are  authorized by the Borrower to permit such  conversion,  at which time
the  Conversion  Price  in  respect  thereof  shall  be the  lesser  of (i)  the
Conversion Price on the Conversion  Default Date (as defined below) and (ii) the
Conversion  Price on the  Conversion  Date  thereafter  elected by the Holder in
respect  thereof.  In addition,  the Borrower  shall pay to the Holder  payments
("CONVERSION  DEFAULT  PAYMENTS") for a Conversion  Default in the amount of (x)
the sum of (1) the then outstanding  principal amount of this Debenture plus (2)
accrued and unpaid  interest on the unpaid  principal  amount of this  Debenture
through the Authorization Date (as defined below) plus (3) Default Interest,  if
any, on the amounts  referred  to in clauses (1) and/or (2),  multiplied  by (y)
..24,  multiplied  by (z) (N/365),  where N = the number of days from the day the
holder submits a Notice of Conversion  giving rise to a Conversion  Default (the
"CONVERSION  DEFAULT  DATE") to the date  (the  "AUTHORIZATION  DATE")  that the
Borrower  authorizes  a  sufficient  number of shares of Common  Stock to effect
conversion of the full  outstanding  principal  balance of this  Debenture.  The
Borrower  shall use its best efforts to authorize a sufficient  number of shares
of Common Stock as soon as  practicable  following  the earlier of (i) such time
that the Holder  notifies the Borrower or that the  Borrower  otherwise  becomes
aware that there are or likely  will be  insufficient  authorized  and  unissued
shares to allow full  conversion  thereof  and (ii) a  Conversion  Default.  The
Borrower  shall send  notice to the Holder of the  authorization  of  additional
shares  of Common  Stock,  the  Authorization  Date and the  amount of  Holder's
accrued Conversion Default Payments. The accrued Conversion Default Payments for
each calendar  month shall be paid in cash or shall be  convertible  into Common
Stock (at such time as there are sufficient  authorized  shares of Common Stock)
at the applicable Conversion Price, at the Borrower's option, as follows:

            (a) In the event Borrower  elects to make such payment in cash, cash
payment  shall be made to Holder by the fifth  (5th) day of the month  following
the month in which it has accrued; and

            (b) In the event  Borrower  elects to make  such  payment  in Common
Stock,  the Holder may convert  such  payment  amount  into Common  Stock at the
Conversion  Price (as in effect at the time of conversion) at any time after the
fifth day of the month following the month in which it has accrued in accordance
with the terms of this Article I (so long as there is then a  sufficient  number
of authorized shares of Common Stock).

            The  Borrower's  election  shall be made in writing to the Holder at
any time prior to 6:00 p.m.,  New York,  New York time,  on the third day of the
month following the month in which Conversion Default payments have accrued.  If
no election is made,  the  Borrower  shall be deemed to have  elected to receive
cash. Nothing herein shall limit the Holder's right to pursue actual damages (to
the extent in excess of the  Conversion  Default  Payments)  for the  Borrower's
failure to maintain a sufficient  number of  authorized  shares of Common Stock,
and each holder shall have the right to pursue all remedies  available at law or
in equity (including degree of specific performance and/or injunctive relief).

      1.4 METHOD OF CONVERSION.

            (a) MECHANICS OF CONVERSION.  Subject to Section 1.1, this Debenture
may be converted by the Holder in whole or in part at any time from time to time
after the Issue Date,  by (A)  submitting to the Borrower a Notice of Conversion
(by  facsimile or other  reasonable  means of  communication  dispatched  on the


                                       5
<PAGE>

Conversion  Date prior to 6:00 p.m., New York, New York time) and (B) subject to
Section  1.4(b),  surrendering  this  Debenture at the  principal  office of the
Borrower.

            (b) SURRENDER OF DEBENTURE UPON CONVERSION. Notwithstanding anything
to the  contrary  set  forth  herein,  upon  conversion  of  this  Debenture  in
accordance with the terms hereof, the Holder shall not be required to physically
surrender  this  Debenture to the Borrower  unless the entire  unpaid  principal
amount of this  Debenture is so  converted.  The Holder and the  Borrower  shall
maintain records showing the principal amount so converted and the dates of such
conversions  or shall use such  other  method,  reasonably  satisfactory  to the
Holder  and  the  Borrower,  so as not to  require  physical  surrender  of this
Debenture upon each such conversion. In the event of any dispute or discrepancy,
such records of the  Borrower  shall be  controlling  and  determinative  in the
absence of manifest error. Notwithstanding the foregoing, if any portion of this
Debenture is converted as aforesaid,  the Holder may not transfer this Debenture
unless the Holder first  physically  surrenders  this Debenture to the Borrower,
whereupon  the Borrower will  forthwith  issue and deliver upon the order of the
Holder a new Debenture of like tenor,  registered as the Holder (upon payment by
the Holder of any applicable  transfer  taxes) may request,  representing in the
aggregate the remaining unpaid  principal  amount of this Debenture.  The Holder
and any assignee,  by acceptance of this Debenture,  acknowledge and agree that,
by reason of the provisions of this paragraph, following conversion of a portion
of this Debenture, the unpaid and unconverted principal amount of this Debenture
represented  by this  Debenture  may be less than the amount  stated on the face
hereof.

            (c) PAYMENT OF TAXES.  The Borrower shall not be required to pay any
tax which may be payable in respect of any  transfer  involved  in the issue and
delivery of shares of Common Stock or other securities or property on conversion
of this  Debenture in a name other than that of the Holder (or in street  name),
and the  Borrower  shall not be  required to issue or deliver any such shares or
other  securities or property unless and until the person or persons (other than
the Holder or the  custodian in whose street name such shares are to be held for
the Holder's  account)  requesting  the issuance  thereof shall have paid to the
Borrower  the  amount  of  any  such  tax  or  shall  have  established  to  the
satisfaction of the Borrower that such tax has been paid.

            (d)  DELIVERY OF COMMON STOCK UPON  CONVERSION.  Upon receipt by the
Borrower from the Holder of a facsimile  transmission (or other reasonable means
of  communication)  of a Notice  of  Conversion  meeting  the  requirements  for
conversion as provided in this Section 1.4, the Borrower shall issue and deliver
or  cause  to be  issued  and  delivered  to or upon  the  order  of the  Holder
certificates  for the Common Stock issuable upon such conversion  within two (2)
business days after such receipt  (and,  solely in the case of conversion of the
entire unpaid principal amount hereof, surrender of this Debenture) (such second
business day being hereinafter referred to as the "DEADLINE") in accordance with
the terms hereof and the Purchase Agreement (including,  without limitation,  in
accordance with the requirements of Section 2(g) of the Purchase  Agreement that
certificates for shares of Common Stock issued on or after the effective date of
the Registration  Statement upon conversion of this Debenture shall not bear any
restrictive legend).


                                       6
<PAGE>

            (e) OBLIGATION OF BORROWER TO DELIVER COMMON STOCK.  Upon receipt by
the  Borrower of a Notice of  Conversion,  the Holder  shall be deemed to be the
holder  of  record of the  Common  Stock  issuable  upon  such  conversion,  the
outstanding  principal  amount and the amount of accrued and unpaid  interest on
this  Debenture  shall be reduced to reflect such  conversion,  and,  unless the
Borrower  defaults  on its  obligations  under this  Article I, all rights  with
respect to the portion of this  Debenture  being so  converted  shall  forthwith
terminate except the right to receive the Common Stock or other securities, cash
or other assets,  as herein provided,  on such  conversion.  If the Holder shall
have given a Notice of Conversion as provided herein, the Borrower's  obligation
to issue and deliver the  certificates  for Common  Stock shall be absolute  and
unconditional,  irrespective  of the  absence  of any  action  by the  Holder to
enforce the same,  any waiver or consent with respect to any provision  thereof,
the  recovery  of any  judgment  against any person or any action to enforce the
same,  any failure or delay in the  enforcement  of any other  obligation of the
Borrower  to the  holder of record,  or any  setoff,  counterclaim,  recoupment,
limitation or termination,  or any breach or alleged breach by the Holder of any
obligation to the Borrower,  and  irrespective of any other  circumstance  which
might  otherwise  limit  such  obligation  of  the  Borrower  to the  Holder  in
connection with such conversion.  The Conversion Date specified in the Notice of
Conversion  shall be the Conversion  Date so long as the Notice of Conversion is
received by the  Borrower  before 6:00 p.m.,  New York,  New York time,  on such
date.

            (f)  DELIVERY OF COMMON  STOCK BY  ELECTRONIC  TRANSFER.  In lieu of
delivering  physical  certificates  representing  the Common Stock issuable upon
conversion,  provided the  Borrower's  transfer  agent is  participating  in the
Depository  Trust Company ("DTC") Fast Automated  Securities  Transfer  ("FAST")
program,  upon  request  of the Holder and its  compliance  with the  provisions
contained in Section 1.1 and in this  Section  1.4,  the Borrower  shall use its
best efforts to cause its transfer agent to  electronically  transmit the Common
Stock  issuable  upon  conversion  to the  Holder by  crediting  the  account of
Holder's Prime Broker with DTC through its Deposit  Withdrawal  Agent Commission
("DWAC") system.

            (g) FAILURE TO DELIVER  COMMON STOCK PRIOR TO  DEADLINE.  Without in
any way limiting the Holder's right to pursue other remedies,  including  actual
damages  and/or  equitable  relief,  the  parties  agree that if delivery of the
Common Stock  issuable upon  conversion  of this  Debenture is more than two (2)
days after the Deadline (other than a failure due to the circumstances described
in Section 1.3 above,  which  failure  shall be governed  by such  Section)  the
Borrower shall pay to the Holder $2,000 per day in cash, for each day beyond the
Deadline that the Borrower fails to deliver such Common Stock.  Such cash amount
shall be paid to Holder by the  fifth  day of the month  following  the month in
which it has accrued  or, at the option of the Holder (by written  notice to the
Borrower  by the  first  day of the  month  following  the month in which it has
accrued),  shall be added to the principal  amount of this  Debenture,  in which
event  interest  shall  accrue  thereon  in  accordance  with the  terms of this
Debenture and such additional  principal amount shall be convertible into Common
Stock in accordance with the terms of this Debenture.

      1.5  CONCERNING  THE  SHARES.  The shares of Common  Stock  issuable  upon
conversion  of this  Debenture  may not be sold or  transferred  unless (i) such
shares are sold pursuant to an effective registration statement under the Act or
(ii) the  Borrower  or its  transfer  agent  shall have been  furnished  with an
opinion  of  counsel  (which  opinion  shall be in  form,  substance  and  scope


                                       7
<PAGE>

customary for opinions of counsel in comparable transactions) to the effect that
the shares to be sold or transferred  may be sold or transferred  pursuant to an
exemption  from such  registration  or (iii) such shares are sold or transferred
pursuant to Rule 144 under the Act (or a successor  rule)  ("RULE  144") or (iv)
such shares are  transferred to an  "affiliate"  (as defined in Rule 144) of the
Borrower who agrees to sell or otherwise  transfer the shares only in accordance
with this  Section  1.5 and who is an  Accredited  Investor  (as  defined in the
Purchase Agreement). Except as otherwise provided in the Purchase Agreement (and
subject  to the  removal  provisions  set forth  below),  until such time as the
shares of Common Stock  issuable  upon  conversion of this  Debenture  have been
registered under the Act as contemplated by the Registration Rights Agreement or
otherwise  may be sold  pursuant to Rule 144 without any  restriction  as to the
number of securities as of a particular date that can then be immediately  sold,
each  certificate  for shares of Common Stock  issuable upon  conversion of this
Debenture that has not been so included in an effective  registration  statement
or that has not been sold pursuant to an effective  registration statement or an
exemption that permits removal of the legend,  shall bear a legend substantially
in the following form, as appropriate:

      "THE SECURITIES  REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN
      REGISTERED  UNDER THE SECURITIES ACT OF 1933, AS AMENDED.  THE
      SECURITIES  MAY NOT BE SOLD,  TRANSFERRED  OR  ASSIGNED IN THE
      ABSENCE  OF  AN  EFFECTIVE   REGISTRATION  STATEMENT  FOR  THE
      SECURITIES  UNDER SAID ACT,  OR AN OPINION OF COUNSEL IN FORM,
      SUBSTANCE  AND SCOPE  CUSTOMARY  FOR  OPINIONS  OF  COUNSEL IN
      COMPARABLE  TRANSACTIONS,  THAT  REGISTRATION  IS NOT REQUIRED
      UNDER SAID ACT UNLESS SOLD  PURSUANT TO RULE 144 OR REGULATION
      S UNDER SAID ACT."

            The legend set forth above shall be removed and the  Borrower  shall
issue to the Holder a new  certificate  therefor free of any transfer  legend if
(i) the  Borrower  or its  transfer  agent  shall  have  received  an opinion of
counsel,  in form,  substance  and scope  customary  for  opinions of counsel in
comparable  transactions,  to the effect  that a public sale or transfer of such
Common Stock may be made without  registration  under the Act and the shares are
so sold or  transferred,  (ii) such Holder provides the Borrower or its transfer
agent with reasonable  assurances that the Common Stock issuable upon conversion
of this  Debenture  (to the  extent  such  securities  are  deemed  to have been
acquired on the same date) can be sold pursuant to Rule 144 or (iii) in the case
of the Common Stock issuable upon conversion of this Debenture, such security is
registered  for sale by the Holder  under an  effective  registration  statement
filed under the Act or  otherwise  may be sold  pursuant to Rule 144 without any
restriction as to the number of securities as of a particular date that can then
be immediately  sold.  Nothing in this Debenture  shall (i) limit the Borrower's
obligation under the Registration Rights Agreement or (ii) affect in any way the
Holder's obligations to comply with applicable  prospectus delivery requirements
upon the resale of the securities referred to herein.

            1.6 EFFECT OF CERTAIN EVENTS.

            (a)  EFFECT OF  MERGER,  CONSOLIDATION,  ETC.  At the  option of the
Holder,  the sale,  conveyance or disposition of all or substantially all of the
assets of the Borrower,  the  effectuation  by the Borrower of a transaction  or
series of related transactions in which more than 50% of the voting power of the


                                       8
<PAGE>

Borrower  is  disposed  of,  or the  consolidation,  merger  or  other  business
combination  of the Borrower with or into any other Person (as defined below) or
Persons when the Borrower is not the survivor shall either:  (i) be deemed to be
an Event of Default (as defined in Article  III)  pursuant to which the Borrower
shall  be  required  to pay to the  Holder  upon  the  consummation  of and as a
condition to such  transaction an amount equal to the Default Amount (as defined
in Article III) or (ii) be treated  pursuant to Section 1.6(b) hereof.  "PERSON"
shall mean any individual,  corporation, limited liability company, partnership,
association, trust or other entity or organization.

            (b)  ADJUSTMENT DUE TO MERGER,  CONSOLIDATION,  ETC. If, at any time
when this Debenture is issued and  outstanding and prior to conversion of all of
the Debentures,  there shall be any merger,  consolidation,  exchange of shares,
recapitalization,  reorganization,  or other similar event, as a result of which
shares of  Common  Stock of the  Borrower  shall be  changed  into the same or a
different number of shares of another class or classes of stock or securities of
the Borrower or another  entity,  or in case of any sale or conveyance of all or
substantially  all of the assets of the Borrower other than in connection with a
plan of complete liquidation of the Borrower,  then the Holder of this Debenture
shall  thereafter  have the right to receive upon  conversion of this Debenture,
upon the basis and upon the terms and conditions specified herein and in lieu of
the shares of Common Stock  immediately  theretofore  issuable upon  conversion,
such stock,  securities  or assets which the Holder would have been  entitled to
receive  in  such   transaction  had  this  Debenture  been  converted  in  full
immediately  prior to such  transaction  (without  regard to any  limitations on
conversion set forth herein), and in any such case appropriate  provisions shall
be made with respect to the rights and interests of the Holder of this Debenture
to the end that the provisions hereof (including, without limitation, provisions
for adjustment of the Conversion Price and of the number of shares issuable upon
conversion of the Debenture) shall thereafter be applicable, as nearly as may be
practicable in relation to any securities or assets thereafter  deliverable upon
the conversion hereof.  The Borrower shall not effect any transaction  described
in this Section  1.6(b)  unless (a) it first gives,  to the extent  practicable,
thirty (30) days prior  written  notice (but in any event at least  fifteen (15)
days  prior  written  notice)  of the  record  date of the  special  meeting  of
shareholders  to approve,  or if there is no such record date, the  consummation
of,  such   merger,   consolidation,   exchange  of  shares,   recapitalization,
reorganization  or other similar event or sale of assets  (during which time the
Holder  shall be  entitled  to convert  this  Debenture)  and (b) the  resulting
successor  or  acquiring  entity  (if  not  the  Borrower)  assumes  by  written
instrument the obligations of this Section 1.6(b).  The above  provisions  shall
similarly apply to successive consolidations, mergers, sales, transfers or share
exchanges.

            (c) ADJUSTMENT DUE TO DISTRIBUTION. If the Borrower shall declare or
make any distribution of its assets (or rights to acquire its assets) to holders
of Common Stock as a dividend, stock repurchase,  by way of return of capital or
otherwise (including any dividend or distribution to the Borrower's shareholders
in cash or shares (or rights to acquire shares) of capital stock of a subsidiary
(i.e., a spin-off)) (a "DISTRIBUTION"),  then the Holder of this Debenture shall
be entitled,  upon any conversion of this Debenture after the date of record for
determining shareholders entitled to such Distribution, to receive the amount of
such  assets  which would have been  payable to the Holder  with  respect to the
shares of Common Stock  issuable upon such  conversion  had such Holder been the
holder of such shares of Common  Stock on the record date for the  determination
of shareholders entitled to such Distribution.


                                       9
<PAGE>

            (d)  ADJUSTMENT DUE TO DILUTIVE  ISSUANCE.  If, at any time when any
Debentures  are issued and  outstanding,  the  Borrower  issues or sells,  or in
accordance with this Section 1.6(d) hereof is deemed to have issued or sold, any
shares of Common Stock for no  consideration  or for a  consideration  per share
(before  deduction  of  reasonable   expenses  or  commissions  or  underwriting
discounts or allowances in connection  therewith) less than the Fixed Conversion
Price in effect on the date of such issuance (or deemed issuance) of such shares
of Common  Stock (a "DILUTIVE  ISSUANCE"),  then  immediately  upon the Dilutive
Issuance,  the Fixed  Conversion  Price  will be  reduced  to the  amount of the
consideration  per share  received by the  Borrower in such  Dilutive  Issuance;
provided that only one adjustment will be made for each Dilutive Issuance.

            The Borrower shall be deemed to have issued or sold shares of Common
Stock if the  Borrower in any manner  issues or grants any  warrants,  rights or
options, whether or not immediately exercisable, to subscribe for or to purchase
Common Stock or other  securities  convertible  into or exchangeable  for Common
Stock ("CONVERTIBLE  SECURITIES") (such warrants, rights and options to purchase
Common Stock or Convertible Securities are hereinafter referred to as "OPTIONS")
and the price per share for which Common Stock is issuable  upon the exercise of
such Options is less than the Fixed  Conversion  Price then in effect,  then the
Fixed  Conversion  Price shall be equal to such price per share. For purposes of
the preceding sentence,  the "price per share for which Common Stock is issuable
upon the  exercise of such  Options"  is  determined  by dividing  (i) the total
amount,  if any, received or receivable by the Borrower as consideration for the
issuance or granting of all such Options,  plus the minimum  aggregate amount of
additional  consideration,  if any, payable to the Borrower upon the exercise of
all such Options,  plus, in the case of Convertible Securities issuable upon the
exercise  of  such  Options,   the  minimum   aggregate   amount  of  additional
consideration  payable upon the conversion or exchange  thereof at the time such
Convertible  Securities first become  convertible or  exchangeable,  by (ii) the
maximum total number of shares of Common Stock issuable upon the exercise of all
such  Options   (assuming  full   conversion  of  Convertible   Securities,   if
applicable). No further adjustment to the Conversion Price will be made upon the
actual  issuance of such Common  Stock upon the exercise of such Options or upon
the conversion or exchange of Convertible  Securities  issuable upon exercise of
such Options.

            Additionally,  the  Borrower  shall be deemed to have issued or sold
shares  of  Common  Stock if the  Borrower  in any  manner  issues  or sells any
Convertible Securities, whether or not immediately convertible (other than where
the same are issuable upon the exercise of Options), and the price per share for
which Common Stock is issuable upon such conversion or exchange is less than the
Fixed Conversion Price then in effect,  then the Fixed Conversion Price shall be
equal to such price per share. For the purposes of the preceding  sentence,  the
"price per share for which  Common  Stock is issuable  upon such  conversion  or
exchange" is determined by dividing (i) the total  amount,  if any,  received or
receivable by the Borrower as consideration for the issuance or sale of all such
Convertible  Securities,   plus  the  minimum  aggregate  amount  of  additional
consideration,  if any,  payable to the Borrower upon the conversion or exchange
thereof at the time such  Convertible  Securities  first become  convertible  or
exchangeable,  by (ii) the  maximum  total  number of  shares  of  Common  Stock
issuable upon the conversion or exchange of all such Convertible Securities.  No
further  adjustment to the Fixed  Conversion  Price will be made upon the actual
issuance of such Common Stock upon  conversion  or exchange of such  Convertible
Securities.


                                       10
<PAGE>

            (e) PURCHASE RIGHTS.  If, at any time when any Debentures are issued
and  outstanding,  the Borrower issues any  convertible  securities or rights to
purchase stock,  warrants,  securities or other property (the "PURCHASE RIGHTS")
pro rata to the record holders of any class of Common Stock,  then the Holder of
this  Debenture will be entitled to acquire,  upon the terms  applicable to such
Purchase  Rights,  the  aggregate  Purchase  Rights which such Holder could have
acquired if such Holder had held the number of shares of Common Stock acquirable
upon complete conversion of this Debenture (without regard to any limitations on
conversion  contained herein)  immediately  before the date on which a record is
taken for the grant,  issuance  or sale of such  Purchase  Rights or, if no such
record is taken,  the date as of which the record holders of Common Stock are to
be determined for the grant, issue or sale of such Purchase Rights.

            (f) NOTICE OF ADJUSTMENTS. Upon the occurrence of each adjustment or
readjustment of the Conversion Price as a result of the events described in this
Section  1.6,  the  Borrower,  at  its  expense,  shall  promptly  compute  such
adjustment  or  readjustment  and  prepare  and  furnish  to  the  Holder  of  a
certificate  setting forth such adjustment or readjustment and showing in detail
the facts upon which such  adjustment  or  readjustment  is based.  The Borrower
shall,  upon the  written  request  at any time of the  Holder,  furnish to such
Holder a like  certificate  setting forth (i) such  adjustment or  readjustment,
(ii) the  Conversion  Price at the time in effect and (iii) the number of shares
of Common Stock and the amount, if any, of other securities or property which at
the time would be received upon conversion of the Debenture.

      1.7 TRADING MARKET  LIMITATIONS.  Unless permitted by the applicable rules
and regulations of the principal  securities market on which the Common Stock is
then listed or traded,  in no event shall the Borrower issue upon  conversion of
or otherwise pursuant to this Debenture and the other Debentures issued pursuant
to the Purchase Agreement more than the maximum number of shares of Common Stock
that the Borrower can issue pursuant to any rule of the principal  United States
securities  market on which the Common Stock is then traded (the "MAXIMUM  SHARE
AMOUNT"),  which shall be 19.99% of the total shares  outstanding on the Closing
Date (as defined in the Purchase  Agreement),  subject to  equitable  adjustment
from time to time for  stock  splits,  stock  dividends,  combinations,  capital
reorganizations  and similar events relating to the Common Stock occurring after
the date  hereof.  Once the  Maximum  Share  Amount has been issued (the date of
which is  hereinafter  referred to as the  "MAXIMUM  CONVERSION  DATE"),  if the
Borrower fails to eliminate any  prohibitions  under applicable law or the rules
or  regulations of any stock  exchange,  interdealer  quotation  system or other
self-regulatory  organization  with jurisdiction over the Borrower or any of its
securities on the  Borrower's  ability to issue shares of Common Stock in excess
of the Maximum Share Amount (a "TRADING MARKET  PREPAYMENT  EVENT"),  in lieu of
any further right to convert this  Debenture,  and in full  satisfaction  of the
Borrower's  obligations  under this  Debenture,  the  Borrower  shall pay to the
Holder,  within fifteen (15) business days of the Maximum  Conversion  Date (the
"TRADING MARKET PREPAYMENT  Date"), an amount equal to 130% times the sum of (a)
the then outstanding  principal amount of this Debenture  immediately  following
the Maximum  Conversion Date, plus (b) accrued and unpaid interest on the unpaid
principal  amount of this Debenture to the Trading Market  Prepayment Date, plus
(c) Default  Interest,  if any, on the amounts  referred to in clause (a) and/or
(b)  above,  plus (d) any  optional  amounts  that may be added  thereto  at the
Maximum  Conversion  Date by the Holder in accordance with the terms hereof (the
then outstanding  principal amount of this Debenture  immediately  following the


                                       11
<PAGE>

Maximum  Conversion  Date, plus the amounts  referred to in clauses (b), (c) and
(d) above  shall  collectively  be  referred  to as the  "REMAINING  CONVERTIBLE
AMOUNT").  With respect to each Holder of  Debentures,  the Maximum Share Amount
shall refer to such  Holder's pro rata share  thereof  determined  in accordance
with Section 4.8 below. In the event that the sum of (x) the aggregate number of
shares of Common Stock issued upon  conversion  of this  Debenture and the other
Debentures  issued  pursuant to the Purchase  Agreement  plus (y) the  aggregate
number of shares of Common Stock that remain  issuable  upon  conversion of this
Debenture and the other  Debentures  issued pursuant to the Purchase  Agreement,
represents at least one hundred  percent (100%) of the Maximum Share Amount (the
"TRIGGERING  EVENT"),  the Borrower will use its best efforts to seek and obtain
Shareholder  Approval  (or obtain  such other  relief as will allow  conversions
hereunder  in  excess  of the  Maximum  Share  Amount)  as soon  as  practicable
following the Triggering  Event and before the Maximum  Conversion Date. As used
herein,  "SHAREHOLDER  APPROVAL"  means  approval  by  the  shareholders  of the
Borrower to authorize  the issuance of the full number of shares of Common Stock
which would be issuable upon full conversion of the then outstanding  Debentures
but for the Maximum Share Amount.

      1.8 STATUS AS SHAREHOLDER.  Upon submission of a Notice of Conversion by a
Holder,  (i) the shares covered  thereby  (other than the shares,  if any, which
cannot be issued  because their  issuance  would exceed such Holder's  allocated
portion  of the  Reserved  Amount  or  Maximum  Share  Amount)  shall be  deemed
converted  into shares of Common Stock and (ii) the Holder's  rights as a Holder
of such converted portion of this Debenture shall cease and terminate, excepting
only the right to receive  certificates  for such shares of Common  Stock and to
any remedies provided herein or otherwise  available at law or in equity to such
Holder  because of a failure by the  Borrower  to comply  with the terms of this
Debenture.   Notwithstanding  the  foregoing,  if  a  Holder  has  not  received
certificates  for all shares of Common Stock prior to the tenth (10th)  business
day after the  expiration  of the Deadline  with respect to a conversion  of any
portion of this  Debenture  for any reason,  then  (unless the Holder  otherwise
elects to retain  its  status as a holder of Common  Stock by so  notifying  the
Borrower) the Holder shall regain the rights of a Holder of this  Debenture with
respect to such  unconverted  portions of this Debenture and the Borrower shall,
as soon as practicable,  return such unconverted  Debenture to the Holder or, if
the Debenture has not been surrendered,  adjust its records to reflect that such
portion of this Debenture has not been converted. In all cases, the Holder shall
retain all of its rights and remedies  (including,  without limitation,  (i) the
right to receive  Conversion  Default  Payments  pursuant  to Section 1.3 to the
extent  required  thereby  for  such  Conversion   Default  and  any  subsequent
Conversion  Default and (ii) the right to have the Conversion Price with respect
to subsequent  conversions  determined  in accordance  with Section 1.3) for the
Borrower's failure to convert this Debenture.

                         ARTICLE II. CERTAIN COVENANTS

      2.1 DISTRIBUTIONS ON CAPITAL STOCK. So long as the Borrower shall have any
obligation  under this  Debenture,  the Borrower  shall not without the Holder's
written consent (a) pay, declare or set apart for such payment,  any dividend or
other distribution  (whether in cash, property or other securities) on shares of
capital stock other than  dividends on shares of Common Stock solely in the form
of  additional  shares of Common Stock or (b) directly or  indirectly or through
any subsidiary  make any other payment or distribution in respect of its capital


                                       12
<PAGE>

stock except for distributions  pursuant to any shareholders'  rights plan which
is approved by a majority of the Borrower's disinterested directors.

      2.2 RESTRICTION ON STOCK  REPURCHASES.  So long as the Borrower shall have
any obligation under this Debenture, the Borrower shall not without the Holder's
written consent redeem,  repurchase or otherwise acquire (whether for cash or in
exchange for property or other  securities or otherwise) in any one  transaction
or series of related transactions any shares of capital stock of the Borrower or
any warrants, rights or options to purchase or acquire any such shares.

      2.3  BORROWINGS.  So long as the Borrower shall have any obligation  under
this Debenture,  the Borrower shall not,  without the Holder's  written consent,
create,  incur,  assume or suffer to exist any  liability  for  borrowed  money,
except (a)  borrowings in existence or committed on the date hereof and of which
the  Borrower  has  informed  Holder in writing  prior to the date  hereof,  (b)
indebtedness  to trade  creditors  or  financial  institutions  incurred  in the
ordinary  course of business or (c)  borrowings,  the proceeds of which shall be
used to repay this Debenture.

      2.4 SALE OF ASSETS.  So long as the  Borrower  shall  have any  obligation
under this  Debenture,  the Borrower  shall not,  without the  Holder's  written
consent,  sell,  lease or otherwise  dispose of any  significant  portion of its
assets outside the ordinary  course of business.  Any consent to the disposition
of any  assets  may be  conditioned  on a  specified  use  of  the  proceeds  of
disposition.

      2.5 ADVANCES AND LOANS.  So long as the Borrower shall have any obligation
under this  Debenture,  the Borrower  shall not,  without the  Holder's  written
consent,  lend money,  give credit or make advances to any person,  firm,  joint
venture or corporation,  including,  without  limitation,  officers,  directors,
employees, subsidiaries and affiliates of the Borrower, except loans, credits or
advances (a) in existence or committed on the date hereof and which the Borrower
has  informed  Holder  in  writing  prior  to the date  hereof,  (b) made in the
ordinary course of business or (c) not in excess of $50,000.

      2.6  CONTINGENT  LIABILITIES.  So  long as the  Borrower  shall  have  any
obligation  under this Debenture,  the Borrower shall not,  without the Holder's
written consent, assume, guarantee,  endorse,  contingently agree to purchase or
otherwise  become liable upon the obligation of any person,  firm,  partnership,
joint  venture  or   corporation,   except  by  the  endorsement  of  negotiable
instruments  for  deposit  or  collection  and except  assumptions,  guarantees,
endorsements and  contingencies (a) in existence or committed on the date hereof
and which the Borrower has informed  Holder in writing prior to the date hereof,
and (b) similar transactions in the ordinary course of business.

                         ARTICLE III. EVENTS OF DEFAULT

            If any of the  following  events  of  default  (each,  an  "EVENT OF
DEFAULT") shall occur:


                                       13
<PAGE>

      3.1 FAILURE TO PAY  PRINCIPAL OR INTEREST.  The Borrower  fails to pay the
principal  hereof or interest  thereon  when due on this  Debenture,  whether at
maturity,  upon a Trading Market  Prepayment Event pursuant to Section 1.7, upon
acceleration or otherwise.

      3.2  CONVERSION  AND THE SHARES.  The  Borrower  fails to issue  shares of
Common Stock to the Holder (or announces or threatens that it will not honor its
obligation to do so) upon exercise by the Holder of the conversion rights of the
Holder in accordance  with the terms of this Debenture (for a period of at least
sixty (60)  days,  if such  failure  is solely as a result of the  circumstances
governed by Section 1.3 and the  Borrower is using its best efforts to authorize
a sufficient number of shares of Common Stock as soon as practicable),  fails to
transfer  or  cause  its  transfer  agent  to  transfer  (electronically  or  in
certificated  form) any  certificate  for shares of Common  Stock  issued to the
Holder upon  conversion of or otherwise  pursuant to this  Debenture as and when
required by this Debenture or the  Registration  Rights  Agreement,  or fails to
remove any restrictive legend (or to withdraw any stop transfer  instructions in
respect thereof) on any certificate for any shares of Common Stock issued to the
Holder upon  conversion of or otherwise  pursuant to this  Debenture as and when
required by this Debenture or the  Registration  Rights  Agreement (or makes any
announcement,  statement  or  threat  that it  does  not  intend  to  honor  the
obligations  described in this  paragraph)  and any such failure shall  continue
uncured (or any  announcement,  statement or threat not to honor its obligations
shall not be rescinded  in writing)  for ten (10) days after the Borrower  shall
have been notified thereof in writing by the Holder.

      3.3  FAILURE  TO TIMELY  FILE  REGISTRATION  OR EFFECT  REGISTRATION.  The
Borrower  fails to file the  Registration  Statement  within  thirty  (30)  days
following the Filing Date (as defined in the Registration  Rights  Agreement) or
obtain  effectiveness  with  the  Securities  and  Exchange  Commission  of  the
Registration Statement within one hundred twenty (120) days following the Filing
Date or such Registration  Statement lapses in effect (or sales cannot otherwise
be made  thereunder  effective,  whether by reason of the Borrower's  failure to
amend or supplement  the  prospectus  included  therein in  accordance  with the
Registration   Rights   Agreement  or  otherwise)  for  more  than  twenty  (20)
consecutive  days or forty  (40)  days in any  twelve  month  period  after  the
Registration Statement becomes effective;

      3.4 BREACH OF COVENANTS.  The Borrower  breaches any material  covenant or
other  material term or condition  contained in Sections 1.3, 1.6 or 1.7 of this
Debenture,  or Sections 4(c),  4(e),  4(h),  4(i),  4(j), 4(l), 4(m) or 5 of the
Purchase Agreement and such breach continues for a period of ten (10) days after
written notice thereof to the Borrower from the Holder;

      3.5  BREACH OF  REPRESENTATIONS  AND  WARRANTIES.  Any  representation  or
warranty  of  the  Borrower  made  herein  or in  any  agreement,  statement  or
certificate  given  in  writing  pursuant  hereto  or  in  connection   herewith
(including,  without  limitation,  the Purchase  Agreement and the  Registration
Rights  Agreement),  shall be false or misleading  in any material  respect when
made and the  breach of which  has (or with the  passage  of time  will  have) a
material  adverse  effect  on the  rights of the  Holder  with  respect  to this
Debenture, the Purchase Agreement or the Registration Rights Agreement;


                                       14
<PAGE>

      3.6 RECEIVER OR TRUSTEE.  The Borrower or any  subsidiary  of the Borrower
shall make an assignment  for the benefit of creditors,  or apply for or consent
to the appointment of a receiver or trustee for it or for a substantial  part of
its  property or  business,  or such a receiver or trustee  shall  otherwise  be
appointed;

      3.7  JUDGMENTS.  Any money  judgment,  writ or  similar  process  shall be
entered or filed  against the Borrower or any  subsidiary of the Borrower or any
of its  property  or other  assets  for more  than  $50,000,  and  shall  remain
unvacated,  unbonded  or  unstayed  for a period  of  twenty  (20)  days  unless
otherwise  consented to by the Holder,  which  consent will not be  unreasonably
withheld;

      3.8  BANKRUPTCY.  Bankruptcy,  insolvency,  reorganization  or liquidation
proceedings or other  proceedings for relief under any bankruptcy law or any law
for the relief of debtors  shall be instituted by or against the Borrower or any
subsidiary of the Borrower;

      3.9  DELISTING OF COMMON  STOCK.  The Borrower  shall fail to maintain the
listing  of the  Common  Stock on at  least  one of the  OTCBB or an  equivalent
replacement  exchange,  the Nasdaq National Market,  the Nasdaq SmallCap Market,
the New York Stock Exchange, or the American Stock Exchange; or

      3.10 DEFAULT UNDER OTHER DEBENTURES.  An Event of Default has occurred and
is continuing under any of the other Debentures  issued pursuant to the Purchase
Agreement,

then,  upon the occurrence and during the  continuation  of any Event of Default
specified in Section 3.1,  3.2,  3.3, 3.4, 3.5, 3.7, 3.9, or 3.10, at the option
of  the  Holders  of a  majority  of  the  aggregate  principal  amount  of  the
outstanding  Debentures  issued pursuant to the Purchase  Agreement  exercisable
through the  delivery of written  notice to the  Borrower by such  Holders  (the
"DEFAULT  NOTICE"),  and upon the occurrence of an Event of Default specified in
Section 3.6 or 3.8, the Debentures shall become  immediately due and payable and
the Borrower shall pay to the Holder,  in full  satisfaction  of its obligations
hereunder,  an amount  equal to the greater of (i) 130% times the sum of (w) the
then outstanding  principal amount of this Debenture plus (x) accrued and unpaid
interest on the unpaid principal amount of this Debenture to the date of payment
(the  "MANDATORY  PREPAYMENT  DATE") plus (y) Default  Interest,  if any, on the
amounts  referred to in clauses (w) and/or (x) plus (z) any amounts  owed to the
Holder pursuant to Sections 1.3 and 1.4(g) hereof or pursuant to Section 2(c) of
the Registration Rights Agreement (the then outstanding principal amount of this
Debenture  to the date of payment  plus the amounts  referred to in clauses (x),
(y) and (z)  shall  collectively  be  known  as the  "DEFAULT  SUM") or (ii) the
"parity  value" of the Default Sum to be prepaid,  where  parity value means (a)
the highest  number of shares of Common Stock  issuable  upon  conversion  of or
otherwise  pursuant to such Default Sum in  accordance  with Article I, treating
the Trading Day  immediately  preceding  the  Mandatory  Prepayment  Date as the
"Conversion Date" for purposes of determining the lowest  applicable  Conversion
Price,  unless the Default  Event arises as a result of a breach in respect of a
specific  Conversion  Date in  which  case  such  Conversion  Date  shall be the
Conversion  Date),  multiplied  by (b) the highest  Closing Price for the Common
Stock during the period  beginning on the date of first  occurrence of the Event
of  Default  and  ending  one day prior to the  Mandatory  Prepayment  Date (the
"DEFAULT  Amount") and all other amounts  payable  hereunder  shall  immediately
become due and payable, all without demand,  presentment or notice, all of which


                                       15
<PAGE>

hereby  are  expressly  waived,  together  with all  costs,  including,  without
limitation,  legal fees and  expenses,  of  collection,  and the Holder shall be
entitled  to  exercise  all other  rights and  remedies  available  at law or in
equity. If the Borrower fails to pay the Default Amount within five (5) business
days of written  notice  that such  amount is due and  payable,  then the Holder
shall  have the right at any time,  so long as the  Borrower  remains in default
(and so long and to the extent that there are sufficient  authorized shares), to
require the Borrower,  upon written notice, to immediately issue, in lieu of the
Default  Amount,  the number of shares of Common Stock of the Borrower  equal to
the Default Amount divided by the Conversion Price then in effect.

                           ARTICLE IV. MISCELLANEOUS

      4.1 FAILURE OR INDULGENCE  NOT WAIVER.  No failure or delay on the part of
the Holder in the  exercise of any power,  right or  privilege  hereunder  shall
operate as a waiver  thereof,  nor shall any single or partial  exercise  of any
such power,  right or privilege preclude other or further exercise thereof or of
any other right, power or privileges. All rights and remedies existing hereunder
are  cumulative  to, and not  exclusive  of, any  rights or  remedies  otherwise
available.

      4.2 NOTICES.  Any notice herein required or permitted to be given shall be
in  writing  and may be  personally  served or  delivered  by courier or sent by
United  States  mail and  shall be deemed to have been  given  upon  receipt  if
personally served (which shall include telephone line facsimile transmission) or
sent by courier or three (3) days after  being  deposited  in the United  States
mail, certified,  with postage pre-paid and properly addressed, if sent by mail.
For the  purposes  hereof,  the  address of the Holder  shall be as shown on the
records of the  Borrower;  and the address of the Borrower  shall be 446 Lincoln
Highway,  Fairless Hills, PA 19030,  facsimile  number:  267-580-1090.  Both the
Holder and the Borrower may change the address for service by service of written
notice to the other as herein provided.

      4.3  AMENDMENTS.  This  Debenture  and any  provision  hereof  may only be
amended by an instrument in writing  signed by the Borrower and the Holder.  The
term "Debenture" and all reference thereto,  as used throughout this instrument,
shall mean this  instrument  (and the other  Debentures  issued  pursuant to the
Purchase Agreement) as originally executed, or if later amended or supplemented,
then as so amended or supplemented.

      4.4  ASSIGNABILITY.  This Debenture shall be binding upon the Borrower and
its successors and assigns,  and shall inure to be the benefit of the Holder and
its  successors  and  assigns.  Each  transferee  of this  Debenture  must be an
"accredited   investor"   (as   defined  in  Rule   501(a)  of  the  1933  Act).
Notwithstanding  anything in this Debenture to the contrary,  this Debenture may
be pledged as collateral in connection  with a bona fide margin account or other
lending arrangement.

      4.5  COST  OF  COLLECTION.  If  default  is made  in the  payment  of this
Debenture,  the  Borrower  shall  pay the  Holder  hereof  costs of  collection,
including reasonable attorneys' fees.

      4.6  GOVERNING  LAW.  THIS  DEBENTURE  SHALL BE ENFORCED,  GOVERNED BY AND
CONSTRUED IN  ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW YORK  APPLICABLE  TO


                                       16
<PAGE>

AGREEMENTS MADE AND TO BE PERFORMED  ENTIRELY WITHIN SUCH STATE,  WITHOUT REGARD
TO THE  PRINCIPLES  OF  CONFLICT OF LAWS.  THE  BORROWER  HEREBY  SUBMITS TO THE
EXCLUSIVE  JURISDICTION OF THE UNITED STATES FEDERAL COURTS LOCATED IN NEW YORK,
NEW  YORK  WITH  RESPECT  TO ANY  DISPUTE  ARISING  UNDER  THIS  DEBENTURE,  THE
AGREEMENTS ENTERED INTO IN CONNECTION HEREWITH OR THE TRANSACTIONS  CONTEMPLATED
HEREBY OR THEREBY. BOTH PARTIES IRREVOCABLY WAIVE THE DEFENSE OF AN INCONVENIENT
FORUM TO THE MAINTENANCE OF SUCH SUIT OR PROCEEDING.  BOTH PARTIES FURTHER AGREE
THAT  SERVICE OF PROCESS UPON A PARTY MAILED BY FIRST CLASS MAIL SHALL BE DEEMED
IN EVERY RESPECT EFFECTIVE SERVICE OF PROCESS UPON THE PARTY IN ANY SUCH SUIT OR
PROCEEDING. NOTHING HEREIN SHALL AFFECT EITHER PARTY'S RIGHT TO SERVE PROCESS IN
ANY  OTHER  MANNER   PERMITTED  BY  LAW.   BOTH  PARTIES   AGREE  THAT  A  FINAL
NON-APPEALABLE  JUDGMENT IN ANY SUCH SUIT OR PROCEEDING  SHALL BE CONCLUSIVE AND
MAY BE ENFORCED IN OTHER  JURISDICTIONS BY SUIT ON SUCH JUDGMENT OR IN ANY OTHER
LAWFUL  MANNER.  THE PARTY WHICH DOES NOT PREVAIL IN ANY DISPUTE  ARISING  UNDER
THIS  DEBENTURE  SHALL  BE  RESPONSIBLE  FOR ALL FEES  AND  EXPENSES,  INCLUDING
ATTORNEYS'  FEES,  INCURRED  BY THE  PREVAILING  PARTY IN  CONNECTION  WITH SUCH
DISPUTE.

      4.7 CERTAIN AMOUNTS.  Whenever  pursuant to this Debenture the Borrower is
required to pay an amount in excess of the outstanding  principal amount (or the
portion  thereof  required  to be paid at that  time)  plus  accrued  and unpaid
interest  plus Default  Interest on such  interest,  the Borrower and the Holder
agree that the actual  damages to the Holder from the receipt of cash payment on
this Debenture may be difficult to determine and the amount to be so paid by the
Borrower  represents  stipulated  damages  and not a penalty  and is intended to
compensate  the  Holder  in part for loss of the  opportunity  to  convert  this
Debenture and to earn a return from the sale of shares of Common Stock  acquired
upon  conversion  of this  Debenture  at a price in excess of the price paid for
such shares pursuant to this Debenture. The Borrower and the Holder hereby agree
that such amount of stipulated  damages is not plainly  disproportionate  to the
possible  loss to the Holder  from the  receipt of a cash  payment  without  the
opportunity to convert this Debenture into shares of Common Stock.

      4.8 ALLOCATIONS OF MAXIMUM SHARE AMOUNT AND RESERVED  AMOUNT.  The Maximum
Share Amount and Reserved  Amount shall be allocated  pro rata among the Holders
of Debentures  based on the principal  amount of such Debentures  issued to each
Holder.  Each increase to the Maximum Share Amount and Reserved  Amount shall be
allocated pro rata among the Holders of Debentures based on the principal amount
of such  Debentures  held by each  Holder  at the  time of the  increase  in the
Maximum  Share  Amount or Reserved  Amount.  In the event a Holder shall sell or
otherwise  transfer any of such Holder's  Debentures,  each transferee  shall be
allocated  a pro rata  portion of such  transferor's  Maximum  Share  Amount and
Reserved  Amount.  Any portion of the Maximum  Share  Amount or Reserved  Amount
which  remains  allocated  to any  person  or  entity  which  does  not hold any
Debentures shall be allocated to the remaining  Holders of Debentures,  pro rata
based on the principal amount of such Debentures then held by such Holders.


                                       17
<PAGE>

      4.9 DAMAGES SHARES. The shares of Common Stock that may be issuable to the
Holder  pursuant to Sections 1.3 and 1.4(g)  hereof and pursuant to Section 2(c)
of the  Registration  Rights  Agreement  ("DAMAGES  SHARES") shall be treated as
Common Stock issuable upon  conversion of this Debenture for all purposes hereof
and shall be subject to all of the limitations and afforded all of the rights of
the  other  shares  of  Common  Stock  issuable  hereunder,   including  without
limitation,  the  right  to be  included  in the  Registration  Statement  filed
pursuant to the  Registration  Rights  Agreement.  For  purposes of  calculating
interest payable on the outstanding principal amount hereof, except as otherwise
provided herein,  amounts  convertible  into Damages Shares ("DAMAGES  AMOUNTS")
shall not bear  interest but must be converted  prior to the  conversion  of any
outstanding  principal amount hereof,  until the outstanding  Damages Amounts is
zero.

      4.10  DENOMINATIONS.  At the request of the Holder, upon surrender of this
Debenture,  the Borrower  shall  promptly  issue new Debentures in the aggregate
outstanding  principal amount hereof, in the form hereof, in such  denominations
of at least $50,000 as the Holder shall request.

      4.11 PURCHASE AGREEMENT. By its acceptance of this Debenture,  each Holder
agrees to be bound by the applicable terms of the Purchase Agreement.

      4.12 NOTICE OF CORPORATE EVENTS.  Except as otherwise  provided below, the
Holder of this Debenture shall have no rights as a Holder of Common Stock unless
and only to the extent that it converts this  Debenture  into Common Stock.  The
Borrower shall provide the Holder with prior  notification of any meeting of the
Borrower's  shareholders  (and copies of proxy  materials and other  information
sent to shareholders). In the event of any taking by the Borrower of a record of
its shareholders for the purpose of determining shareholders who are entitled to
receive  payment of any dividend or other  distribution,  any right to subscribe
for, purchase or otherwise acquire  (including by way of merger,  consolidation,
reclassification  or  recapitalization)  any  share of any  class  or any  other
securities  or property,  or to receive any other  right,  or for the purpose of
determining  shareholders  who  are  entitled  to vote in  connection  with  any
proposed sale, lease or conveyance of all or substantially  all of the assets of
the  Borrower  or any  proposed  liquidation,  dissolution  or winding up of the
Borrower,  the Borrower shall mail a notice to the Holder,  at least twenty (20)
days prior to the record  date  specified  therein (or thirty (30) days prior to
the consummation of the transaction or event, whichever is earlier), of the date
on which  any such  record  is to be taken  for the  purpose  of such  dividend,
distribution,  right or other event, and a brief statement  regarding the amount
and character of such dividend, distribution, right or other event to the extent
known at such time. The Borrower shall make a public  announcement  of any event
requiring notification to the Holder hereunder substantially simultaneously with
the  notification  to the Holder in  accordance  with the terms of this  Section
4.12.

      4.13  REMEDIES.  The  Borrower  acknowledges  that a  breach  by it of its
obligations  hereunder will cause  irreparable harm to the Holder,  by vitiating
the intent and purpose of the transaction contemplated hereby. Accordingly,  the
Borrower  acknowledges  that the  remedy at law for a breach of its  obligations
under this Debenture will be inadequate and agrees,  in the event of a breach or
threatened breach by the Borrower of the provisions of this Debenture,  that the
Holder shall be entitled,  in addition to all other available remedies at law or


                                       18
<PAGE>

in equity, and in addition to the penalties  assessable herein, to an injunction
or  injunctions  restraining,  preventing or curing any breach of this Debenture
and to  enforce  specifically  the terms and  provisions  thereof,  without  the
necessity of showing  economic loss and without any bond or other security being
required.

                         ARTICLE V. OPTIONAL PREPAYMENT

      5.1  OPTIONAL  PREPAYMENT.   Notwithstanding   anything  to  the  contrary
contained  in this  Article V, for not more than  thirty (30) days from the date
hereof,  so long as (i) no Event of Default or Trading Market  Prepayment  Event
shall have occurred and be continuing, (ii) the Borrower has a sufficient number
of authorized  shares of Common Stock reserved for issuance upon full conversion
of the  Debentures,  then at any time after the Issue Date, and (iii) the common
stock is  trading  below  $1.00 per share the  Borrower  shall  have the  right,
exercisable  on not less than ten (10) Trading Days prior written  notice to the
Holders of the  Debentures  (which  notice may not be sent to the Holders of the
Debentures until the Borrower is permitted to prepay the Debentures  pursuant to
this Section  5.1),  to prepay all of the  outstanding  Debentures in accordance
with  this  Section  5.1.  Any  notice of  prepayment  hereunder  (an  "OPTIONAL
PREPAYMENT")  shall be  delivered  to the  Holders  of the  Debentures  at their
registered  addresses  appearing  on the books and records of the  Borrower  and
shall state (1) that the Borrower is  exercising  its right to prepay all of the
Debentures  issued  on the  Issue  Date  and (2) the  date  of  prepayment  (the
"OPTIONAL PREPAYMENT  NOTICE").  On the date fixed for prepayment (the "OPTIONAL
PREPAYMENT  DATE"),  the Borrower shall make payment of the Optional  Prepayment
Amount (as defined  below) to or upon the order of the Holders as  specified  by
the Holders in writing to the  Borrower at least one (1)  business  day prior to
the Optional  Prepayment Date. If the Borrower exercises its right to prepay the
Debentures,  the Borrower shall make payment to the holders of an amount in cash
(the "OPTIONAL  PREPAYMENT  AMOUNT") equal to 130%  multiplied by the sum of (w)
the then  outstanding  principal  amount of this  Debenture plus (x) accrued and
unpaid interest on the unpaid principal amount of this Debenture to the Optional
Prepayment Date plus (y) Default Interest, if any, on the amounts referred to in
clauses (w) and (x) plus (z) any amounts owed to the Holder pursuant to Sections
1.3 and 1.4(g)  hereof or pursuant to Section  2(c) of the  Registration  Rights
Agreement (the then  outstanding  principal amount of this Debenture to the date
of  payment  plus the  amounts  referred  to in clauses  (x),  (y) and (z) shall
collectively be known as the "OPTIONAL PREPAYMENT SUM").  Notwithstanding notice
of an Optional Prepayment,  the Holders shall at all times prior to the Optional
Prepayment  Date  maintain  the  right  to  convert  all or any  portion  of the
Debentures  in  accordance  with  Article I and any  portion  of  Debentures  so
converted  after  receipt  of an  Optional  Prepayment  Notice  and prior to the
Optional  Prepayment  Date set forth in such notice and payment of the aggregate
Optional  Prepayment  Amount  shall be  deducted  from the  principal  amount of
Debentures which are otherwise subject to prepayment pursuant to such notice. If
the  Borrower  delivers  an  Optional  Prepayment  Notice  and  fails to pay the
Optional  Prepayment  Amount due to the Holders of the Debentures within two (2)
business days following the Optional Prepayment Date, the Borrower shall forever
forfeit its right to redeem the Debentures pursuant to this Section 5.1.


                                       19
<PAGE>

      IN WITNESS WHEREOF, Borrower has caused this Debenture to be signed in its
name by its duly authorized officer this 26th day of November, 2003.


                                              DIGITAL DESCRIPTOR SYSTEMS, INC.



                                              By: ______________________________
                                                  Anthony R. Shupin
                                                  Chairman of the Board


                                       20
<PAGE>

                                    EXHIBIT A

                              NOTICE OF CONVERSION
                    (To be Executed by the Registered Holder
                       in order to Convert the Debentures)

            The undersigned  hereby  irrevocably  elects to convert  $__________
principal  amount of the Debenture  (defined below) into shares of common stock,
par value $.001 per share ("COMMON STOCK"), of Digital Descriptor Systems, Inc.,
a Delaware  corporation  (the  "BORROWER")  according to the  conditions  of the
convertible  debentures  of the  Borrower  dated as of  November  26,  2003 (the
"Debentures"),  as of the date written below.  If securities are to be issued in
the name of a person other than the  undersigned,  the undersigned  will pay all
transfer  taxes  payable with respect  thereto and is  delivering  herewith such
certificates.  No fee will be charged to the Holder for any  conversion,  except
for transfer  taxes,  if any. A copy of each  Debenture  is attached  hereto (or
evidence of loss, theft or destruction thereof).

            The Borrower shall electronically transmit the Common Stock issuable
pursuant to this Notice of Conversion to the account of the  undersigned  or its
nominee with DTC through its Deposit  Withdrawal Agent Commission  system ("DWAC
TRANSFER").

         Name of DTC Prime Broker:
                                  ----------------------------------------------
         Account Number:
                        --------------------------------------------------------

            In lieu of  receiving  shares of Common Stock  issuable  pursuant to
this Notice of  Conversion by way of a DWAC  Transfer,  the  undersigned  hereby
requests that the Borrower issue a certificate or certificates for the number of
shares of Common Stock set forth below (which  numbers are based on the Holder's
calculation  attached hereto) in the name(s) specified  immediately below or, if
additional space is necessary, on an attachment hereto:

         Name:
              ------------------------------------------------------------------
         Address:
                 ---------------------------------------------------------------

            The undersigned represents and warrants that all offers and sales by
the undersigned of the securities issuable to the undersigned upon conversion of
the Debentures  shall be made pursuant to registration  of the securities  under
the Securities Act of 1933, as amended (the "ACT"),  or pursuant to an exemption
from registration under the Act.

                  Date of Conversion:_____________________________

                  Applicable Conversion Price:____________________

                  Number of Shares of Common Stock to be Issued Pursuant to
                  Conversion of the Debentures:___________________

                  Signature:______________________________________

                  Name:___________________________________________

                  Address:________________________________________


                                       21
<PAGE>

The  Borrower  shall issue and deliver  shares of Common  Stock to an  overnight
courier not later than three  business  days  following  receipt of the original
Debenture(s) to be converted, and shall make payments pursuant to the Debentures
for the number of business days such issuance and delivery is late.



                                       22