Patent ID: 6860429

Claim:
A method for authenticating a data media storing data in order to prevent at least one of piracy, unauthorized access and unauthorized copying of said data media, wherein at least a data area of said media is impregnated with at least one predetermined tracing substance including a predetermined concentration of at least one of an isotope, a plurality of isotopes and a plurality of stable isotopes to form at least one security marking used for at least one of tracking and authenticating said data media, said method comprising the steps of: (a) detecting the at least one security marking in said data area of said data media (b) authenticating said data media responsive to said detecting step (a) using the at least one security marking; and (c) outputting said data stored on said data media as at least one of audio, video, audio data, video data and digital data substantially free of said at least one security marking when the data media has been successfully authenticated by said authenticating step (b).