Patent ID: 7046607

Claim:
A multimedia copy control system for controlling a copy of a digital data recording medium in which digital audio data is stored and from which the digital audio-data is reproduced and recorded to another recording medium for copying, wherein the digital audio data stored in the digital data recording medium includes a first copy control information of a digital format and a second copy control information of an analog embedded format, said system comprising: an encryption decoder configured to decrypt reproduction output data from the digital data recording medium to judge whether the reproduction output data is encrypted data; a first copy control detector configured to detect the first copy control information from the decrypted reproduction data; a contents data decoder configured to extract the digital audio data from the decrypted reproduction data; and a second copy control detector configured to detect the second copy control information from the extracted digital audio data, wherein encryption of the reproduction output data from the recording medium is decrypted and judged for each digital contents unit under reproduction, and when said first copy control detector detects the first copy control information, the reproduction of the digital audio data is controlled based on the first copy control information, and when said first copy control detector detects no first copy control information, the reproduction of the digital audio data is controlled based on the second copy control information.