Optical disk having an attribute which designates whether a recording area permits rewriting or not
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsKyosuke Yoshimoto, M. C. Rao, Hiroyuki Ohata, Kazuhiko Nakane, Teruo Furukawa, Junichi Kondo, Masafumi Ototake
Life of this patent
Estimating the term…
Abstract
An optical disk has a recording region divided into zones, each zone including physical tracks which are divided into a number of sectors. The optical disk further includes a structure management table which stores an attribute for each zone indicating whether the corresponding zone is a recording area which permits rewriting of a recording area that does not permit rewriting.
Claims2
An optical disk drive device for use with an optical disk having a first recording layer on said disk and a second recording layer on said disk, in which a recording area attribute for designating whether a corresponding recording layer is an area which permits rewriting or an area which does not permit rewriting is set for each of said first recording layer and said second recording layer, and data representing the recording area attribute for each of said first recording layer and said second recording layer is recorded in a structure management table provided in a predetermined part of said disk, the recording area attribute for said first recording layer being different than the recording area attribute for said second recording layer, said device comprising:
- means for providing recording area attributes in the structure management table;
- and
- means for altering the recording area attributes recorded in the structure management table.
An optical disk having a first recording layer and a second recording layer on said disk, in which a recording area attribute for designating whether a corresponding recording layer is an area which permits rewriting or an area which does not permit rewriting is set for each of said first recording layer and said second recording layer, and data representing the recording area attribute for each of said first recording layer and said second recording layer is recorded in a structure management table provided in a predetermined part of said disk, the recording area attribute for said first recording layer being different than the recording area attribute for said second recording layer.
Dependencies are inferred from the claim text.