Patent ID: 7773482

Claim:
A record carrier of the disc-like optically inscribable type, having a preformed track in which an auxiliary signal comprising a sequence of codes is formed by a preformed track modulation, wherein the sequence of codes comprises a sequence of address codes specifying addresses of track portions in which said address codes are recorded and a plurality of special codes for specifying control data for controlling a recording by a recording device, wherein the preformed track consecutively from an inner part of the record carrier comprises: program calibration area reserved for recorder calibrating purposes; a program memory area for temporarily storing recorded user content data; a lead-in area for storing definitive recorded user content data; a program area for recording user data; a lead-out area for indicating end of the program area; wherein said special codes are recorded in the lead-in area and/or the lead-out area; and an extended area preceding the program calibration area containing special codes representing additional control information that are capable of controlling the recording device; wherein the special codes contain bit combinations which do not occur in the address codes and are indicative of commands for controlling the recording device.