FIELD: data carriers.
SUBSTANCE: disk-shaped data carrier when disk manufacture method is used contains first record carrier, which is formed in such a position in direction towards disk thickness, that distance from surface of cover layer, through which light comes for recording and/or reproduction onto first record layer, equals the distance in case of single-layered disk, and second record layer is formed in form of multiple recording layers in such a position, that it is positioned closer to aforementioned surface of cover layer then aforementioned first layer, in which from first to n-th record layers, record layers with odd numbers are recorded and/or reproduced in direction from internal circle to external circle of disk, and record layers with even numbers are recorded and/or reproduced in direction from external circle to internal circle of disk.
EFFECT: increased compatibility, reliability, possible access between single-layer disk and multi-layer disk.
3 cl, 84 dwg
