Removable data cartridge

Removable disk cartridge and manufacturing method thereof

Removable disk cartridge with improved door operating mechanism

Removable disk cartridge with improved hub locking mechanism

Removable disk construction

Removable disk to drive engagement

Removal of reel stored magnetic tape

Resettable single play tape cassette

Resilient protrusion for positioning in a spool of a magnetic ta

Resinous disc cartridge containing an ester compound of glycerin

Restraining and sealing mechanism for disc cartridge

Reusable record tab for videotape cassette

Ribbed cleaning apparatus for disk cartridges

Rigid disc plastic substrate with high stiffness insert

Rotatable door and door opening mechanism for a cartridge

Safety device for tape cassettes for positionally correct insert

Scent cassette

Sealed cassette containing recording carrier tape

Sealed removable cartridge for use with a high density disc driv

Sector servo with sync marks