Semi-permanent enclosure for optical data storage device

Shutter assembly for a disc cartridge

Shutter for disk cartridge and method for producing same

Shutter locking mechanism for a miniature compact disk cartridge

Shutter plate control device in a disc playback device

Shutterless data recording cartridge and drive for using same

Single disk write protection system for multiple-disk cartridge

Small disk adapter with storage case

Spacer for stacked recorded discs

Spacer for use in testing information recorded discs

Spacer/protector for stacking recorded 33 rpm records

Split carrier for data storage disks

Split disk carrier with locking mechanism

Structure for preventing dislocation of a spring in an optical d

Structure for protecting reading area of compact disc and...

Tamper-proof lid lock in disc cartridge

Transducer positioning device

Universal data storage element for providing various data storag

Write inhibit tab for disc cartridge

Write protect component for re-writable compact disc