Protective cover for optically read digital disks

Protective divider and enclosure disc assembly for laser...

Recording disk cartridge

Recording disk hub bond

Recording medium cartridge

Recording medium cartridge and signal recording apparatus

Recording medium cartridge and signal recording apparatus

Recording medium cartridge and signal recording apparatus

Recording medium holder for accommodating recording medium...

Releasable disc adaptor for conforming central hub of informatio

Removable disk cartridge for use with a rotary actuated disk dri

Screwing action playable compact disc case

Sealable cover for a package and package system for...

Secure optical information disc

Secure optical information disc

Secure optical information disc

Secure optical information disc having a minimized metal layer

Self-adhesive spindle-shaped button disk and the use thereof

Self-contained, multi-axis recordable and storage apparatus

Semi-permanent enclosure for optical data storage device