Disk shaped recording reproduction device

Disk size detecting circuit

Disk storage device having a carriage locking mechanism

Disk storage magazine and recording/reproducing apparatus

Disk support mechanism in a player

Disk supporting device

Disk system

Disk transfer device with disk alignment mechanism

Disk transferring device for a disk changer including structure

Disk unit and process for assembling transmission mechanism used

Disk unit and process for assembling transmission mechanism used

Disk-changing device with reciprocating back-switching step cam

Disk-changing unit with modular design

Disk-drive apparatus waith rattle-preventing cartridge magazine

Double picker drive multiplexing mechanism

Double solenoid focus actuator for optical recording/playback ap

Double-side playing optical disk player

Double-sided disk player

Double-sided reproducing disk player

Double-sides playable disc player