Optical disk having information pits with projections formed the
Optical disk having intertrack heat conduction suppression
Optical disk having lands and grooves with a reduced track...
Optical disk having logical tracks and dummy sectors in each zon
Optical disk having narrow and wide guide grooves
Optical disk having pattern displayed thereon and apparatus for
Optical disk having pits with push-pull signal of opposite polar
Optical disk having plurality of volumes, recording device...
Optical disk having predetermined cross-track signal, cross-trac
Optical disk having read-only and rewritable areas with overlapp
Optical disk having read-only and rewritable areas with...
Optical disk having recording capacity of about at least 15 GB
Optical disk having recording layers of different...
Optical disk having reduced track pitch and optical disk playbac
Optical disk having sequentially numbered sectors and logical tr
Optical disk having specified track pitch, and optical disk...
Optical disk having speech recognition templates for information
Optical disk having synchronization region formed between...
Optical disk having synchronous marks and data marks to satisfy
Optical disk having track offset detection areas