| 摘要 |
<p>A disc cartridge having a cartridge body accommodating therein a record medium so that the record medium can have information recorded thereon and/or reproduced therefrom in the accommodated state, a first identifying device movably provided in the cartridge body so as to be switched from the exterior of the cartridge so that it can close partly or wholly a rectangular window aperture formed through the cartridge body, and a second identifying device provided in the cartridge body in a half-secured condition so as to close a part of another rectangular window aperture formed through the cartridge body and which cannot be switched from the exterior of the cartridge, wherein the first and second identifying devices indicate the kind of optical disc and data necessary for recording and/or reproducing the optical disc incorporated.</p> |
