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EXHIBIT 1
CERTIFICATION REGARDING JOINT FILING OF
SCHEDULE 13D PURSUANT TO RULE 13D-1(k)
OF THE SECURITIES AND EXCHANGE COMMISSION
TDK U.S.A. Corporation and TDK Corporation do hereby certify that the
Schedule 13D to which this certification is attached as Exhibit 1 is being filed
with the Securities and Exchange Commission on behalf of the undersigned.
Dated: September 21, 2000
/s/ Kenichi Aoshima
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TDK U.S.A. CORPORATION
By: Kenichi Aoshima
Its: President and CEO
/s/ Hajime Sawabe
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TDK CORPORATION
By: Hajime Sawabe
Its: President and CEO
