For the second time since November, a New Jersey man has pleaded guilty to defrauding mail-order music clubs of thousands of compact discs by using false names and addresses to exploit the clubs' introductory offers.

The man, Joseph Parvin, 60, said that from 1993 to 1998 he received 26,554 compact discs addressed to 2,417 customer accounts at 16 post office boxes and slight variations on the address of his house in Lawrenceville. He got the discs from BMG Music Services and Columbia House Music Club, both based in Manhattan.

He pleaded guilty yesterday before Judge Alfred M. Wolin in Federal District Court in Newark to one count of mail fraud. He faces up to five years in prison and a $250,000 fine when sentenced on June 13.

Mr. Parvin's lawyer, William F. Maderer, said Mr. Parvin also ran a legitimate business registering and selling Internet domain names.