Wechsler Harwood Halebian & Feffer LLP Announces Class Periods - Crayfish, Co., Ltd.; (CRFH), Fidelity Holdings; (FDHG), MP3.com, Inc.; (MPPP), Plug Power, Inc.; (PLUG) -

Notice to persons who transacted in the following securities and respective class periods:

  CORPORATION               CLASS PERIOD        DUE DATE

  CRAYFISH CO., LTD.        03/08/00-08/30/00   11/13/00
   (NASDAQ: CRFH)

  FIDELITY HOLDINGS         11/15/99-04/12/00   10/10/00
   (NASDAQ: FDHG)

  MP3.COM, INC.             01/13/00-09/07/00   11/17/00
   (NASDAQ: MPPP)

  PLUG POWER, INC.          01/07/00-08/02/00   11/13/00
   (NASDAQ: PLUG)

Wechsler Harwood Halebian & Feffer LLP ("Wechsler Harwood") has been retained to investigate claims or filed class action complaints claims involving the securities of the above companies on behalf of investors.

Wechsler Harwood has extensive experience representing shareholders in class actions and has served as lead counsel on behalf of shareholders in many such actions. The reputation and expertise of this firm in shareholder and other class actions has repeatedly been recognized by the courts.

If you wish to discuss these actions, or have any questions concerning this notice or your rights or interests with respect to these matters, please contact Wechsler Harwood Halebian & Feffer LLP, 488 Madison Avenue, New York, New York 10022, by calling toll free 877-935-7400 or by contacting:

Patricia Guiteau, Shareholder Relations Department - MP3.com, Inc., and Plug Power, Inc.: pguiteau@whhf.com

Craig Lowther, Shareholder Relations Department - Crayfish Co., Ltd. and Fidelity Holdings: clowther@whhf.com

SOURCE: Wechsler Harwood Halebian & Feffer LLP

Contact: Patricia Guiteau, Shareholder Relations Department for MP3.com,
Inc., and Plug Power, Inc., pguiteau@whhf.com or Craig Lowther, Shareholder
Relations Department for Crayfish Co., Ltd. and Fidelity Holdings,
clowther@whhf.com, both of Wechsler Harwood Halebian & Feffer LLP

Website: http://www.whhf.com/