| 摘要 |
A disc cartridge having a cartridge body in which a magneto-optical disc is rotatably accommodated in a hermetic-fashion so as to be capable of recording and/or reproduction. The cartridge body has a concave cut-away portion extended from an insertion side end face of the cartridge body to a central portion of the cartridge body to introduce external magnetic field generating means which generates an external magnetic field to record an information signal on the magneto-optical disc accommodated within the cartridge body.
|
