Patent ID: 7761889

Claim:
A disc cartridge comprising: a cartridge body having a lower side substantially parallel to an upper side, adapted to house a disc and having formed on the lower side an aperture through which part of the disc, when housed, is exposed, the aperture having a first beveled edge provided along at least a portion of a perimeter of the aperture; and a disc cartridge protecting member adapted to be alternately attached and removed from the cartridge body, the disc cartridge protecting member including: an aperture closing plate having a free end opposite to a base end and a second beveled edge; a cover plate; and a connecting plate to connect the base end of the aperture closing plate and the cover plate to each other, wherein when the disc cartridge protecting member is attached to the cartridge body the aperture closing plate obstructs the aperture, the first beveled edge is adjacent to the second beveled edge preventing the aperture closing plate from contacting the disc, and the cover plate at least partially covers the upper side of the cartridge body.