Patent ID: 6952388

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 means of a preformed track modulation, which codes comprise a sequence of address codes (AC) specifying the addresses of the track portions in which said address codes (AC) are recorded and special codes (SC) for specifying control data for controlling a recording by a recording device, wherein the preformed track comprises consecutively from an inner part of the disc: a program calibration area (PCA) reserved for recorder calibrating purposes, a program memory area (PMA) for temporarily storing recorded user content data, a lead-in area (LI) for storing definitive recorded user content data, a program area (PA) for recording user data and a lead-out area (LO) for indicating end of the program area, wherein said special codes are recorded in the lead-in area and/or the lead-out area, characterized in that, the preformed track further comprises an extended area (XAA) preceding the program calibration area (PCA) containing special codes (SC) representing additional control information for controlling a recording by a recording device, wherein the extended area (XAA) comprises an extended information area (XIA) comprising the additional control information and a buffer area located between the extended information area (XIA) and the program calibration area (PCA) containing only address codes (AC).