1 EXHIBIT 23.1 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our reports included in this Form 10-K, into the Company's previously filed Registration Statement File Nos. 333-78565, 333-30484, 333-94849, 333-53512 and 333-57356. ARTHUR ANDERSEN LLP Los Angeles, California April 10, 2001