Optical recording medium having spiral tracks formed with a turn

Optical recording medium having substrate of dual...

Optical recording medium having super resolution layer

Optical recording medium having the physical address of sectors

Optical recording medium having thin protective layer and two-di

Optical recording medium having tracks, each track having a...

Optical recording medium having transparent color ink formed...

Optical recording medium having two pit trains of mutually...

Optical recording medium having two separate recording layers

Optical recording medium having two superimposed recording level

Optical recording medium having unreadable restricted...

Optical recording medium having unrecordable restricted...

Optical recording medium having wobbling groove extending...

Optical recording medium having zones wherein the number of sect

Optical recording medium including a divided track with...

Optical recording medium including a plurality of diffracted gra

Optical recording medium including a wobbled groove with...

Optical recording medium including identification region...

Optical recording medium including protruding winding parts...

Optical recording medium its manufacturing method and...