Optical storage medium having a specific light transmitting...

Optical storage medium having an organic recording layer...

Optical storage medium having distortion regions, and a...

Optical storage medium having distortion regions, and a...

Optical storage medium having information of dummy data at...

Optical storage medium having multiple recording layers of...

Optical storage medium having multiple recording layers of...

Optical storage medium having protective layer thicker than...

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