| 摘要 |
A disc cartridge has a cartridge main body (4), a shutter member (8) and a mistaken recording inhibiting member (12). The cartridge main member houses a disc (1) on which information signals are pre- recorded or are to be recorded, and has a recording/reproducing aperture (6, 7) via which at least a part of the housed disc (1) is exposed to outside along the radius of the disc (1). A shutter member (8) is movably mounted on the cartridge main body (4) and opens/closes the recording/reproducing aperture (6, 7). A mistaken recording inhibiting member (12) has a mistaken recording inhibiting portion of a size sufficient to close a mistaken detection hole (13) formed in the cartridge main body (4), an actuating portion for movement between a first position of closing the recording/reproducing aperture (6, 7) by the mistaken recording inhibiting portion and a second position of opening the mistaken recording detection hole (13), and an indicating portion positioned facing an indicating hole (20) formed in the cartridge main body (4) for indicating the sort of the disc (1) housed within the cartridge main body (4). <IMAGE>
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