Disc cartridge and disc apparatus

摘要

A disc cartridge includes at least a magneto-optical disc and a cartridge (upper shell) storing the magneto-optical disc in a rotatable manner and having an opening provided in a region including a position corresponding to a predetermined rotation center of the magneto-optical disc. The opening is longer on a forward side in the disc cartridge insertion direction (on the Y-direction side) with respect to the position corresponding to the rotation center than on a backward side in the disc cartridge insertion direction (on the X-direction side) along a straight line passing through the position corresponding to the rotation center and parallel to the disc cartridge insertion direction. Thus, a disc cartridge and a disc unit which are constructed to allow the disc cartridge to be smoothly loaded are provided.