Patent ID: 7249364
Filing Date: 2007-07-24
Classification: G11B

Abstract:
1. A disc cartridge comprising: a cartridge body including a disc storage portion, a chucking opening and a head opening, wherein the disc storage portion stores a disc, having first and second sides, therein so that the disc is rotatable in the disc storage portion and that the first side of the disc is exposed; the chucking opening is formed on the bottom of the disc storage portion so as to get the disc chucked externally; and the head opening is also formed on the bottom of the disc storage portion so as 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 pair of shutters, which are supported, and movable with respect to the cartridge body, between the second side of the disc and the bottom of the disc storage portion so as to expose or cover the chucking and head openings; and a disc holder, which is provided for the shutters, presses the disc against the shutters, and holds the disc thereon while the chucking and head openings are covered with the shutters, wherein the head opening reaches a side surface of the cartridge body, and wherein an opener/closer for use to open and close the shutters is provided for at least one of the shutters and is located inside the head opening.