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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                AMENDMENT NO. 20
                                       TO
                                  SCHEDULE 13D
                                 (Rule 13d-101)

                               Westwood One, Inc.
                               ------------------
                                (Name of Issuer)

                     Common Stock, Par Value $.01 Per Share
                     --------------------------------------
                         (Title of Class of Securities)

                                   961815 10 7
                                   -----------
                                 (CUSIP Number)

                              Gregory C. Hill, Esq.
                            Locke Liddell & Sapp LLP
                             600 Travis, Suite 3400
                              Houston, Texas 77002
                                 (713) 226-1187
                                 --------------
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

           September 10, 2004, September 13, 2004, September 15, 2004,
           September 16, 2004, September 17, 2004, September 22, 2004,
                    September 23, 2004 and September 24, 2004
                         (Date of Events which Requires
                            Filing of this Statement)


         If the filing person has previously filed a statement on Schedule 13G
to report the acquisition that is the subject of this Schedule 13D, and is
filing this schedule because of Rule 13d-1(e), (f) or (g), check the following
box [ ]






                                  SCHEDULE 13D

---------------------------------------------
CUSIP No. 961815 10 7 
          ------------
---------------------------------------------

--------------------------------------------------------------------------------
1         NAME OF REPORTING PERSON
          I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (entities only)

          David I. Saperstein
--------------------------------------------------------------------------------
2         CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
          (a)
             -------
          (b)   X
             -------
--------------------------------------------------------------------------------
3         SEC USE ONLY


--------------------------------------------------------------------------------
4         SOURCE OF FUNDS (See Instructions)

          N/A
--------------------------------------------------------------------------------
5         CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
          2(d) or 2(e)

          [ ]
--------------------------------------------------------------------------------
6        CITIZENSHIP OR PLACE OF ORGANIZATION

          U.S.A.
--------------------------------------------------------------------------------
                           7      SOLE VOTING POWER
                                       4,642,950
NUMBER OF
SHARES                     -----------------------------------------------------
BENEFICIALLY               8      SHARED VOTING POWER
OWNED BY EACH                          None
REPORTING 
PERSON WITH                -----------------------------------------------------
                           9      SOLE DISPOSITIVE POWER
                                       4,642,950

                           -----------------------------------------------------
                           10      SHARED DISPOSITIVE POWER
                                       None

--------------------------------------------------------------------------------
11        AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                   4,642,950

--------------------------------------------------------------------------------
12        CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
          (See Instructions)
          
          [X]
--------------------------------------------------------------------------------
13        PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

                    4.8%
--------------------------------------------------------------------------------
14        TYPE OF REPORTING PERSON (See Instructions)

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






                                AMENDMENT NO. 20
                                       TO
                                  SCHEDULE 13D

         This Amendment No. 20 to the Schedule 13D ("Amendment No. 20") is being
filed by David I. Saperstein (the "Reporting Person") pursuant to Rule 13d-2 of
the General Rules and Regulations under the Securities Exchange Act of 1934, as
amended, with respect to the common stock, par value $.01 per share (the "Issuer
Common Stock") of Westwood One, Inc., a Delaware corporation (the "Issuer").
This Amendment No. 20 supplements, amends and restates information contained in
the Schedule 13D originally filed by the Reporting Person on October 5, 1999
(the "Schedule 13D"), as amended by Amendment No. 2 to Schedule 13D ("Amendment
No. 2"), as further amended by Amendment No. 3 to Schedule 13D ("Amendment No.
3"), as further amended by Amendment No. 4 to Schedule 13D ("Amendment No. 4"),
as further amended by Amendment No. 5 to Schedule 13D ("Amendment No. 5"), as
further amended by Amendment No. 6 to Schedule 13D ("Amendment No. 6"), as
further amended by Amendment No. 7 to Schedule 13D ("Amendment No. 7"), as
further amended by Amendment No. 8 to Schedule 13D ("Amendment No. 8"), as
further amended by Amendment No. 9 to Schedule 13D ("Amendment No. 9"), as
further amended by Amendment No. 10 to Schedule 13D ("Amendment No. 10"), as
further amended by Amendment No. 11 to Schedule 13D ("Amendment No. 11"), as
further amended by Amendment No. 12 to Schedule 13D ("Amendment No. 12"), as
further amended by Amendment No. 13 to Schedule 13D ("Amendment No. 13"), as
further amended by Amendment No. 14 ("Amendment No. 14") to Schedule 13D, as
further amended by Amendment No. 15 to Schedule 13D ("Amendment No. 15"), as
further amended by Amendment No. 16 to Schedule 13D ("Amendment No. 16") and as
further amended by Amendment No. 17 to Schedule 13D ("Amendment No. 17"), as
further amended by Amendment No. 18 ("Amendment No. 18") and as further amended
by Amendment No. 19 ("Amendment No. 19"). Capitalized terms used in this
Amendment No. 20 but not otherwise defined have the meaning ascribed to them in
the Schedule 13D. The Schedule 13D is supplemented, amended and restated as
follows:

ITEM 4. PURPOSE OF TRANSACTION.

         Paragraphs (a) and (e) of Item 4 are amended and restated in their
entirety as follows:

         The Reporting Person acquired the shares of Issuer Common Stock
reported herein solely for investment purposes.

         (a), (e) Pursuant to the Merger Agreement, the Reporting Person
received 7,649,250 shares of Issuer Preferred Stock in exchange for 5,099,500
shares of Metro Preferred Stock. By its terms, each share of Issuer Preferred
Stock is convertible with no premium into one share of Issuer Common Stock at
the option of the holder. However, under the Metro Loan Agreement and the
Assignment Agreement, the Reporting Person may not convert the Issuer Preferred
Stock into Issuer Common Stock prior to repaying the Metro Stock Loan. The Metro
Stock Loan may be repaid only by delivering to the Issuer either the Issuer
Preferred Stock or 7,649,250 shares of Issuer Common Stock. See Items 3 and 5.

         On October 19, 1999, the Reporting Person sold 3,120,000 shares of
Issuer Common Stock pursuant to a "brokerage transaction" (the "Brokerage
Transaction"), as such term is defined in Rule 144 under the Securities Act of
1933, as amended. Goldman, Sachs & Co. ("Goldman") sold these shares (the
"Brokerage Shares") in its capacity as a broker for the Reporting Person. The
Brokerage Shares were sold by the Reporting Person for an aggregate amount of
$58,500,000, representing an amount equal to $18.75 per Brokerage Share.






         Also on October 19, 1999, the Reporting Person entered into a letter
agreement (the "Letter Agreement") with the Issuer, pursuant to which the
Reporting Person sold 1,066,660 shares of Issuer Common Stock to the Issuer (the
"Stock Repurchase") pursuant to the Issuer's stock repurchase program (the
"Stock Repurchase Program"). Such shares (the "Repurchase Shares") were sold by
the Reporting Person pursuant to the Issuer's Stock Repurchase Program for an
aggregate amount of $19,999,875.00, representing an amount equal to $18.75 per
Repurchase Share. The Stock Repurchase was consummated on October 26, 1999.

         On December 27, 1999, the Reporting Person transferred 7,649,250 shares
of Issuer Common Stock to the Issuer in connection with the Reporting Person's
obligations under the Metro Loan Agreement, as assigned, assumed and amended by
the Assignment Agreement.

         Also on December 27, 1999, the Reporting Person transferred 3,150,750
shares of Issuer Common Stock to the Trusts pursuant to the terms of the Trust
Loan Agreements.

         On December 28, 1999, the Reporting Person acquired beneficial
ownership of 7,649,250 shares of Issuer Common Stock, upon the conversion of the
Reporting Person's Issuer Preferred Stock into an equivalent number of shares of
Issuer Preferred Stock.

         On January 24, 2000, the Reporting Person disposed of 1,956,000 shares
of Issuer Common Stock in an open market transaction.

         On April 26, 2000, the Reporting Person disposed of 632,900 shares of
Issuer Common Stock in an open market transaction.

         On December 11, 2000, the Reporting Person gifted an aggregate of
993,647 shares of Issuer Common Stock to certain charitable trusts of which the
Reporting Person is the Trustee.

         On December 22, 2000, the Reporting Person gifted an aggregate of
306,353 shares of Issuer Common Stock to another charitable trust (together with
the charitable trusts referenced in the preceding paragraph, the "Charitable
Trusts") of which the Reporting Person is a Trustee.

         On January 4, 2001, the Charitable Trusts disposed of an aggregate of
170,000 shares of Issuer Common Stock in open market transactions.

         On January 12, 2001, the Charitable Trusts disposed of an aggregate of
10,000 shares of Issuer Common Stock in open market transactions.

         On April 12, 2001, the Charitable Trusts disposed of an aggregate of
9,000 shares of Issuer Common Stock in open market transactions.

         On April 16, 2001, one of the Charitable Trusts disposed of 2,500
shares of Issuer Common Stock in an open market transaction.

         On April 17, 2001, the Reporting Person disposed of 186,500 shares of
Issuer Common Stock in an open market transaction.

         On April 18, 2001, the Reporting Person disposed of 941,000 shares of
Issuer Common Stock in an open market transaction.






         On May 16, 2001, the Charitable Trusts disposed of an aggregate of
15,000 shares of Issuer Common Stock in open market transactions.

         On May 21, 2001, the Reporting Person disposed of 270,000 shares of
Issuer Common Stock in an open market transaction.

         On May 22, 2001, the Reporting Person disposed of 336,000 shares of
Issuer Common Stock in an open market transaction.

         On May 23, 2001, the Reporting Person disposed of 15,100 shares of
Issuer Common Stock in an open market transaction.

         On July 19, 2001, the Reporting Person disposed of 303,200 shares of
Issuer Common Stock in an open market transaction.

         On August 13, 2001, the Reporting Person disposed of 280,000 shares of
Issuer Common Stock in open market transactions.

         On August 14, 2001, the Reporting Person disposed of 201,700 shares of
Issuer Common Stock in open market transactions.

         On August 15, 2001, the Reporting Person disposed of 69,300 shares of
Issuer Common Stock in an open market transaction.

         On August 16, 2001, the Reporting Person disposed of 12,600 shares of
Issuer Common Stock in an open market transaction.

         On August 22, 2001, the Reporting Person sold 6,200 shares of Issuer
Common Stock in an open market transaction.

         On August 23, 2001, the Reporting Person sold 139,900 shares of Issuer
Common Stock in open market transactions.

         On August 24, 2001, the Reporting Person sold 239,900 shares of Issuer
Common Stock in open market transactions.

         On August 27, 2001, the Reporting Person sold 178,000 shares of Issuer
Common Stock in open market transactions.

         On August 28, 2001, the Reporting Person sold 55,000 shares of Issuer
Common Stock in an open market transaction.

         On August 30, 2001, the Reporting Person sold 10,000 shares of Issuer
Common Stock in an open market transaction.

         On August 31, 2001, the Reporting Person sold 133,900 shares of Issuer
Common Stock in an open market transaction.

         On September 4, 2001, the Reporting Person sold 343,625 shares of
Issuer Common Stock in open market transactions.






         On December 6, 2001, the Reporting Person contributed 1,500,000 shares
of Issuer Common Stock to a partnership (the "Partnership") affiliated with the
reporting person.

         On December 10, 2001, the Partnership disposed of 213,800 shares of
Issuer Common Stock in open market transactions.

         On December 11, 2001, the Partnership disposed of 18,600 shares of
Issuer Common Stock in open market transactions.

         On December 12, 2001, the Partnership disposed of 86,500 shares of
Issuer Common Stock in open market transactions.

         On December 13, 2001, the Partnership disposed of 79,700 shares of
Issuer Common Stock in open market transactions.

         On December 14, 2001, the Partnership disposed of 105,300 shares of
Issuer Common Stock in open market transactions.

         On December 17, 2001, the Partnership disposed of 132,200 shares of
Issuer Common Stock in open market transactions.

         On December 18, 2001, the Partnership disposed of 167,500 shares of
Issuer Common Stock in open market transactions.

         On December 19, 2001, the Partnership disposed of 125,000 shares of
Issuer Common Stock in open market transactions.

         On December 20, 2001, the Partnership disposed of 21,900 shares of
Issuer Common Stock in open market transactions.

         On December 24, 2001, the Partnership disposed of 20,900 shares of
Issuer Common Stock in open market transactions.

         On December 26, 2001, the Partnership disposed of 53,900 shares of
Issuer Common Stock in open market transactions.

         On December 27, 2001, the Partnership disposed of 216,500 shares of
Issuer Common Stock in open market transactions.

         On December 28, 2001, the Charitable Trusts disposed of 107,000 shares
of Issuer Common Stock in open market transactions.

         On December 31, 2001, the Charitable Trusts disposed of 32,000 shares
of Issuer Common Stock in open market transactions.

         On December 31, 2001, the Partnership disposed of 163,400 shares of
Issuer Common Stock in open market transactions.

         On January 4, 2002, the Partnership disposed of 50,000 shares of Issuer
Common Stock in open market transactions.






         On January 9, 2002, the Partnership disposed of 44,800 shares of Issuer
Common Stock in open market transactions.

         On January 11, 2002, the Charitable Trusts disposed of 2,400 shares of
Issuer Common Stock in open market transactions.

         On January 17, 2002, the Reporting Person gifted 17,900 shares of
Issuer Common Stock to a school.

         On January 18, 2002, the Reporting Person disposed of 58,475 shares of
Issuer Common Stock in open market transactions.

         On April 15, 2002, two trusts for the benefit of the Reporting Person's
two adult children contributed an aggregate of 503,070 shares of Issuer Common
Stock to two partnerships in which the 1% general partner is an entity in which
the Reporting Person has a 55% interest. On April 18, 2002, the Reporting Person
contributed 2,540 shares of Issuer Common Stock into each of the partnerships
referred to above, in exchange for a 1% limited partnership interest in each
such partnership. On April 19, 2002, the partnerships disposed of all shares of
Issuer Common Stock owned by them in open market transactions.

         On April 17, 2002, the Reporting Person exchanged 263,852 shares of
Issuer Common Stock for limited partnership interests in a private investment
partnership.

         On April 18, 2002 the Reporting Person disposed of 280,469 shares of
Issuer Common Stock in an open market transaction; and a trust of which the
Reporting Person is a trustee disposed of 66,288 shares of Issuer Common Stock
in an open market transaction.

         On April 19, 2002, the Charitable Trusts disposed of an aggregate of
27,573 shares of Issuer Common Stock in open market transactions.

         On May 9, 2002, the Reporting Person sold 23,434 shares of Issuer
Common Stock in an open market transaction; the Reporting Person exercised
options to purchase 600,000 shares of Issuer Common Stock and sold all of such
shares in an open market transaction; and the Charitable Trusts sold an
aggregate of 534,166 shares of Issuer Common Stock in open market transactions.

         On June 5, 2002, three trusts for the benefit of which the Reporting
Person's minor children contributed an aggregate of 754,605 shares of Issuer
Common Stock to three limited partnerships in which the 1% general partner is an
entity in which the Reporting Person has a 55% interest. On June 5, 2002, the
Reporting Person contributed 2,540 shares of Issuer Common Stock into each of
the partnerships referred to above, in exchange for a 1% limited partnership
interest in each such partnership (the "Minor Children's Partnerships"). The
Reporting Person disclaims beneficial ownership of all of the shares held by the
Minor Children's Partnerships.

         On August 19, 2002, the Reporting Person sold 8,000 shares of Issuer
Common Stock in an open market transaction.

         On September 5, 2002, the Reporting Person gifted an aggregate of
179,100 shares of Issuer Common Stock to a charitable trust.

         On October 23, 2002, the Reporting Person sold 48,100 shares of Issuer
Common Stock in an open market transaction.






         On October 24, 2002, the Reporting Person sold 9,500 shares of Issuer
Common Stock in an open market transaction.

         On October 28, 2002, the Reporting Person sold 24,800 shares of Issuer
Common Stock in an open market transaction.

         On October 30, 2002, the Reporting Person sold 15,000 shares of Issuer
Common Stock in an open market transaction.

         On November 22, 2002, November 27, 2002, November 29, 2002, December 2,
2002, January 3, 2003 and January 6, 2003, the Reporting Person sold an
aggregate amount of 177,298 shares of Issuer Common Stock in open market
transactions.

         On January 8, 2003, January 9, 2003 and January 10, 2003, the
Charitable Trusts sold an aggregate of 106,000 shares of Issuer Common Stock in
open market transactions.

         On January 6, 2003, January 7, 2003, January 9, 2003, January 10, 2003,
January 13, 2003 and January 14, 2003, the Minor Children's Partnerships
disposed of an aggregate of 518,300 shares of Issuer Common Stock in open market
transactions.

         On January 15, 2003 and January 16, 2003, the Minor Children's
Partnerships disposed of an aggregate of 54,400 shares of Issuer Common Stock in
open market transactions.

         On February 6, 2003 and April 10, 2003, the Charitable Trusts disposed
of an aggregate of 19,100 shares of Issuer Common Stock in open market
transactions.

         On May 7, 2003, the Reporting Person received 26,646 shares of Issuer
Common Stock in a distribution from an investment limited partnership.

         On June 19, 2003 and June 20, 2003, the Reporting Person sold 142,946
shares of Issuer Common Stock in open market transactions.

         On August 29, 2003, the Reporting Person received 319,475 shares of
Issuer Common Stock in a distribution from an investment limited partnership.

         On December 15, 2003, December 16, 2003, December 18, 2003, and
February 12, 2004, the Charitable Trusts disposed of an aggregate of 135,500
shares of Issuer Common Stock in open market transactions.

         On September 10, 2004, September 13, 2004, September 15, 2004,
September 16, 2004, September 17, 2004, September 22, 2004, September 23, 2004
and September 24, 2004, the Charitable Trusts disposed of an aggregate of
1,081,900 shares of Issuer Common Stock in open market transactions.


ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.

         Item 5 is amended and restated in its entirety as follows:

         (a) The Reporting Person beneficially owns an aggregate of 4,624,950
shares of Issuer Common Stock, constituting 4.8% of the total class.






         The shares of Issuer Common Stock reported herein as beneficially owned
by the Reporting Person do not include (a) an aggregate of 208,861 shares of
Issuer Common Stock held by the Charitable Trusts or (b) an aggregate of 181,905
shares of Issuer Common Stock held by trusts that benefit the Reporting Person's
minor children. The Reporting Person disclaims beneficial ownership of all of
the shares held by the Charitable Trusts and the Minor Children's Partnerships.

         (b) Except as specified in the Voting Agreement, the Reporting Person
has sole voting and dispositive power as to 4,624,950 shares of Issuer Common
Stock.

         (c) Other than as provided herein, no transactions in the Issuer Common
Stock were effected by the Reporting Person since the filing of the Schedule 13D
Statement.

         (d) Not applicable.

         (e) The Reporting Person ceased to be the beneficial owner of more than
five percent of the class of securities on September 24, 2004.


ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

         (i)      Stock Loan and Pledge Agreement, dated as of October 16, 1996,
                  between Metro Networks, Inc. and David I. Saperstein.

         (ii)     Assignment, Assumption and Amendment Agreement dated as of
                  September 22, 1999, among Westwood One, Inc., Metro Networks,
                  Inc. and David I. Saperstein.

         (iii)    Stock Loan and Pledge Agreement, dated as of October 16, 1996,
                  between Michelle Joy Coppola 1994 Trust and David I.
                  Saperstein (a "Trust Loan Agreement").1

         (iv)     Merger Agreement, dated as of June 1, 1999, as amended, among
                  Westwood One, Inc., Copter Acquisition Corp. and Metro
                  Networks, Inc. Incorporated by reference to Exhibit 2.1 to the
                  Issuer's Registration Statement on Form S-4 (Registration
                  Number 333-85609) filed on August 20, 1999.

         (v)      Voting Agreement, dated as of September 22, 1999, between
                  David I. Saperstein and Infinity Broadcasting Corporation.

         (vi)     Letter Agreement, dated as of October 19, 1999, between David
                  I. Saperstein and Westwood One, Inc.


                           [Signature Page to Follow]



----------

(1)  Except for the names of the parties, the four other Trust Loan Agreements
     are identical to the Trust Loan Agreement filed herewith and accordingly
     are not being filed.






         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: April 4, 2005

                                           /s/ David I. Saperstein
                                           -------------------------------------
                                           David I. Saperstein






                                  EXHIBIT INDEX



EXHIBIT
NUMBER            DESCRIPTION
------            -----------
                 
         (i)      Stock Loan and Pledge Agreement, dated as of October 16, 1996,
                  between Metro Networks, Inc. and David I. Saperstein
                  (incorporated by reference to Exhibit 99.(I) to Metro's
                  Schedule 13D filed with the Securities and Exchange Commission
                  on October 29, 1996).

         (ii)     Assignment, Assumption and Amendment Agreement dated as of
                  September 22, 1999, among Westwood One, Inc., Metro Networks,
                  Inc. and David I. Saperstein (incorporated by reference to
                  Exhibit 99.(II) to Westwood's Schedule 13D filed on October 5,
                  1999).

         (iii)    Stock Loan and Pledge Agreement, dated as of October 16, 1996,
                  between Michelle Joy Coppola 1994 Trust and David I.
                  Saperstein (incorporated by reference to Exhibit 99.(II) to
                  Metro's Schedule 13D filed with the Securities and Exchange
                  Commission on October 29, 1996).

         (iv)     Merger Agreement, dated as of June 1, 1999, as amended, among
                  Westwood One, Inc., Copter Acquisition Corp. and Metro
                  Networks, Inc. (incorporated by reference to Exhibit2.1 to the
                  Issuer's Registration Statement on Form S-4 filed with the
                  Securities and Exchange commission on August 20, 1999).

         (v)      Voting Agreement, dated as of September 22, 1999, between
                  David I. Saperstein and Infinity Broadcasting Corporation
                  (incorporated by reference to Exhibit 99.(V) to Westwood's
                  Schedule 13D filed on October 5, 1999).

         (vi)     Letter Agreement, dated as of October 19, 1999, between David
                  I. Saperstein and Westwood One, Inc. (incorporated by
                  reference to Exhibit 99.VI to Amendment No. 1 to Westwood's
                  Schedule 13D filed on November 9, 1999).