Patent ID: RE44659

Claim:
A record carrier comprising substantially parallel tracks having: first variations of a first physical parameter of the track tracks , the first variations representing information recorded on the record carrier, said information being recoverable by a controllable type of data processing; and second variations of a second physical parameter of the track tracks , a modulation pattern of the second variations representing a code for controlling said type of data processing, characterized in that, with respect to a code track a series of laterally adjacent tracks, each comprising said modulation pattern , the series of tracks including: a code track, a left neighboring track on the left of and laterally adjacent to the code track, and a right neighboring track on the right of and laterally adjacent to the code track , a the modulation pattern in a the left neighboring track is laterally aligned to a with the modulation pattern in a the right neighboring track , the laterally aligned modulation patterns continuing the lateral alignment and said modulation pattern unchanged substantially over the entire circumferential length of the code track .