Optical disk having read-exclusive and write-enable regions

Optical disk library apparatus of desk-top type

Optical disk library apparatus of desk-top type

Optical disk library apparatus with automatic head cleaning func

Optical disk library including optical disk media with non-stand

Optical disk medium and its application method and system

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

Optical disk memory system with closed loop micro-jump between a

Optical disk playback and recording device which alternately all

Optical disk player

Optical disk player

Optical disk player capable of playing back a plurality of diffe

Optical disk player capable of playing back both CD-ROM and CD-D

Optical disk player having multidomain memory for storing demodu

Optical disk player having reduced laser output during track cha

Optical disk program repeater

Optical disk reading head controller

Optical disk recording and readout system having read, write and

Optical disk recording and reproducing apparatus reliably provid

Optical disk recording and reproducing system capable of elimina