Patent ID: 6246537
Filing Date: 2001-06-12
Classification: G11B

Abstract:
A substantially disc-shaped recording medium for recording information signals along a plurality of substantially concentric recording tracks provided on a first major surface and a second major surface thereof, whereinan association of logical block addresses to said recording tracks is made in a sequence in which the logical block addresses proceed, in a recordable information area, with a first recording track at a radially mid portion between an innermost recording track and an outermost recording track on said first major surface as a logical starting point, towards the outer rim as far as a second recording track, then from a third recording at a mid portion between an innermost recording track and an outermost recording track on said second major surface towards the inner rim as far as a fourth recording track, then from the next recording track on the outer rim side of the second recording track on the first major surface towards the outer rim, until reaching the outermost recording track on the first major surface, said logical block addresses then proceeding towards the inner rim from the outermost recording track on the second major surface, so as to skip the third recording track and the fourth recording track, until reaching the innermost recording track on the second major surface, said logical block addresses then proceeding from the innermost rim on the first major surface towards the outer rim until reaching the recording track directly ahead of the first recording track.