Optical storage medium having two recording areas of...
Optical storage medium in which sector address information...
Optical storage medium with first layer containing optically rea
Optical storage medium with improved substrate structure to...
Optical storage medium, a tilt detection apparatus, and a...
Optical storage method and device for storing and reading digita
Optical storage system optical storage medium and use of...
Optical tape cartridge having improved tape movement mechanism
Optical test disk having a plurality of different formats
Optical type information recording medium having specified pit a
Optical video disc structure
Optical video disc structure
Optical/magneto-optical recording medium having a hygroscopic sw
Optically detectable information recording medium with...
Optically inscribable record carrier with prerecorded informatio
Optically readable disc with a centering member fixed to a trans
Optically readable disc with a centering member fixed to a trans
Optically readable information disc and method of manufacturing
Optically readable information disc having a reflection layer fo
Optically readable information disc provided with a reflective o