Copy protection using multiple security levels on a programmable CD-ROM

A copy-protected optical disc, including a preformed identification number (ID) in the ATIP signal and the subcode which is impressed upon the optical disc and a number of other optical discs during optical disc manufacture, a unique identification number for the optical disc which was written on the optical disc after it is manufactured; and an encrypted program written onto the optical disc wherein the encryption of such program is based upon the preformed ID and the unique ID and includes two or more selectable security levels.