The case which conforms to ISO/IEC10089

摘要

PROBLEM TO BE SOLVED: To provide a disk cartridge of a film surface incident system which allows the immediate discrimination of the compatibility to a drive assembly and the drive assembly which reads and writes information from and to the disk cartridge. ;SOLUTION: The disk cartridge is constituted by housing a disk (2) of the film surface incident system into a case (1). The case (1) is provided with a positioning hole (6) for fitting the positioning pin of the drive assembly. The positioning hole (6) is provided with a function to discriminate the compatibility of the disk (2) to the drive assembly by the fitting relation to the positioning pin. The drive assembly has the positioning pin to be fitted into the positioning hole (6) of the disk cartridge and accesses an optical head only to the disk cartridge to which the positioning pin is fitted.;COPYRIGHT: (C)2001,JPO