Servo master magnetically transferring servo patterns to...

Servo pattern in an optical data storage medium for obtaining a

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

Signal recording apparatus for recording a synchronous and cance

Single disk write protection system for multiple-disk cartridge

Single polymer layer recordable/erasable optical media

Single-substrate multi-layer optical disk for read-only storage

Small disk adapter with storage case

Small form factor optical data storage disc and cartridge

Sound carrier for a sound illustrated book

Spacer for stacked recorded discs

Spacer for use in testing information recorded discs

Spacer/protector for stacking recorded 33 rpm records

Spindle servo circuit in an apparatus for playing an optical dis

Split carrier for data storage disks

Split disk carrier with locking mechanism