| 摘要 |
A disc cartridge designed to prevent mistaken loading on a recording and/or reproducing apparatus in which only a disc cartridge having different specifications can be loaded. The disc cartridge includes a main cartridge body portion 13 for housing a magnetic disc 11 having different specifications from those of a magnetic disc housed in a conventional disc cartridge 101, and recording/reproducing apertures 26, 27 formed in the main cartridge body portion 13 so as to be faced by a recording/reproducing unit provided on the recording/reproducing apparatus. The disc cartridge also includes a shutter member 28 for opening/closing the recording/reproducing apertures 26, 27 and loading regulating portions 51, 52 provided on the main cartridge body portion 13 for regulating loading of the main cartridge body portion on the recording/reproducing apparatus 110 in which only the conventional disc cartridge 101 can be loaded. |
