Optical information recording medium

Optical information recording medium and method of...

Optical information recording medium and optical information...

Optical information recording medium having discernible obverse

Optical information recording medium having multi-layered struct

Optical information recording medium manfacturing method...

Optical information recording medium, method for...

Optical information recording medium, with plural...

Optical information recording method and apparatus for...

Optical information recording method and medium

Optical multilayer disk, multiwavelength light source, and...

Optical pickup device and focus control method therefor

Optical record medium having an improved reflection thin film

Optical recording disc

Optical recording disk

Optical recording element

Optical recording element having a plurality of thin film filter

Optical recording medium

Optical recording medium

Optical recording medium