Optical memory and information processing apparatus
Optical memory apparatus
Optical memory cartridge and drive apparatus
Optical memory device
Optical memory device and apparatus for manufacturing the same
Optical memory device and system
Optical memory device having guide tracks shaped for increasing
Optical memory device with grooves and pits in selected dimensio
Optical memory disc
Optical memory having narrowed track pitch
Optical memory medium with predetermined guide tracks and prepit
Optical memory medium with preformed pit arrangement
Optical memory medium with preformed pit arrangement
Optical multi-layer information recordating medium
Optical multilayer disk, multiwavelength light source, and...
Optical phase-change disc
Optical phase-change disc
Optical phase-change disc having a grooved substrate, with the g
Optical pickup and information device
Optical pickup device and focus control method therefor