Patent ID: 6910219
Filing Date: 2005-06-21
Classification: G11B

Abstract:
1. 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, and movable with respect to the disc storage portion, between the second side of the disc and the first wall of the disc storage portion so as to expose or cover the opening, and defines a hole in a region corresponding to a center hole of the disc while the shutter is closed; and a disc holder, which is provided for the shutter, presses the disc against the shutter, and holds the disc thereon while the opening is covered with the shutter.