Oblon, McClelland, Maier & Neustadt, L.L.P.
Multilayer optical recording medium, drive device, reproducing and recording apparatus, and inspection method for multilayer optical recording medium
According to one embodiment, a multilayer optical recording medium including a substrate, a guide layer group that is provided on the substrate and has guide layers in which positional information in a radial direction is recorded, and a recording layer group that is provided on the substrate and has recording layers in which information can be recorded. In the recording layer group, positional information of the recording layers associated with the positional information recorded in the guide layers and control information of the optical device where reflected light volumes of the laser beams on the guide layers and the recording layers become maximum at the positions in the radial direction are recorded at the positions in the radial direction of the recording layers.
Kabushiki Kaisha Toshiba
G G G G
G11B G11B G11B G11B
inventional additional additional additional
Masahiro
Saito