An optical storage device adapted so that a cartridge accommodating an optical storage medium is inserted/ejected with respect to the device. The device includes a drive base, a cartridge holder mounted on the drive base for receiving the cartridge, a first carriage mounted on the drive base so as to...http://www.google.de/patents/US6683824?utm_source=gb-gplus-sharePatent US6683824 - Magneto-optical recording device having optical and magnetic heads moving independently
