Patent ID: 7131131

Claim:
A disc cartridge comprising: a disc storage portion having a first wall with an opening therein and a second wall having a disc window for storing a disc having first and second sides, the first and second walls being oppositely disposed and generally parallel with respect to each other, the disc window being complementarily sized to receive the disc therein so that the disc is rotatable in the disc storage portion and that the first side of the disc is exposed through the disc window; the opening is formed on the first wall of the disc storage portion so as to get the disc chucked externally and to allow a head, which reads and/or writes a signal from/on the second side of the disc, to access the second side of the disc; a shutter, which is supported to, and movable with respect to, the disc storage portion so as to expose or cover at least the opening; and a disc holding member extending from the disc storage portion into the disc window so that at least a portion of the disc holding member is disposed at least partially over the disc, the disc holding member including an elastic portion for applying an elastic force on the disc holding member in order to force the disc toward the first wall of the disc storage portion, thereby gripping the disc between the disc holding member and the first wall to retain the disc within the disc storage portion.