Optical disc, recording apparatus method, and reproduction...

Optical disk and optical disk drive device

Optical disk and optical disk drive device

Optical disk medium and method and apparatus for reading...

Optical disk medium, and data recording method and device

Optical disk recorder for writing data with variable density

Optical disk recording apparatus and recording control...

Optical disk recording apparatus, optical disk recording...

Optical disk recording apparatus, optical disk recording...

Optical disk recording medium and optical disk drive apparatus

Optical disk, optical disk device, and method of reproducing...

Optical disk, optical disk device, and method of reproducing...

Optical information recording and reproducing system with...

Optical information recording medium and recording apparatus

Optical record carrier containing special codes

Optical recording apparatus for recording addresses and...

Optical recording medium and method of assigning its spare area

Optical recording medium and recording/reproduction method...

Optical recording medium on which a wobble signal having...

Optical recording medium with wobbled header area, and data...