Patent ID: 7055163

Claim:
A disc cartridge, comprising: a disc in a disc shape, including a recording layer for recording/reproducing information; a disc cover for covering at least a surface for recording/reproducing, which is accessed by a head for recording/reproducing information with respect to the disc; and connecting means for connecting the disc and the disc cover, wherein a side of the disc, which is opposite to the side of the disc covered by the disc cover, is exposed externally, the disc has a disc projected section in an inner circumference part of the disc, the disc projected section being projected toward the disc cover, the connecting means is a movable projecting section provided on the disc cover, and one end of the movable projecting section is inserted in or pulled out with respect to a recessed section provided on a side wall of the disc projected section, and when the one end of the movable projecting section goes into the recessed section, an opposite end of the movable projecting section is hooked and stopped by a recessed hooked section inside the disc cover.