Optical disc with heat blocking bands between tracks

Optical disc with phase pits and a reproducing apparatus for dat

Optical disc with pit interval and depth for maximum visual...

Optical disc with surface coating and manufacturing method there

Optical disc with wobbled tracks and apparatus using this...

Optical disc with wobbled tracks and apparatus using this...

Optical disc with wobbled tracks and apparatus using this...

Optical disc with wobbled tracks and apparatus using this...

Optical disc, and method of and apparatus for recording...

Optical disc, and method of and apparatus for recording...

Optical disc, and reading system and manufacturing method of...

Optical disc, apparatus and method for recording and reproducing

Optical disc, device for checking optical disc and device for re

Optical disc, device for checking optical disc, and device for r

Optical disc, having a certification pit for certifying that...

Optical disc, method for manufacturing the same, drive for...

Optical disc, optical disc apparatus, and optical disc...

Optical disc, optical disc device, and method for recording an o

Optical disc, optical disc device, and method for recording an o

Optical disc, optical disc device, and method for recording an o