| 摘要 |
PURPOSE:To surely detect the type of disk at the outside part of a cartridge. CONSTITUTION:A first disk-type indication part and a second disk-type indication part 9, 10 which correspond to types of disks 1a, 1b housed in a cartridge 2 are installed at the outside of the cartridge 2. The disk-type indication parts 9, 10 are formed respectively either as flat states or recessed hole states. Thereby, four types of indication states can be formed. |
