RECORD MEDIUM FOR SUPPORTING SPECIFIC MANUFACTURER'S INFORMATION Russian patent published in 2003 - IPC

FIELD: optical recording and reproduction of video and/or audio data. SUBSTANCE: record medium designed, for example, to store recorder manufacturer identifying information that varies content of record medium functions to keep formatted information for audio and/or video data and manufacturer s information supporting specific functions of manufacturer. Record medium has identifying information of recording device that writes or modifies record medium data; it also has manufacturer identifying information of recorder that writes or modifies audio and/or video data on record medium other than identifying information stored before its writing or modification. EFFECT: facilitated procedure and reduced time for reliability check of information at great quantity of recorded audio/video data. 25 cl, 8 dwg