Patent ID: 7103901
Filing Date: 2006-09-05
Classification: G11B

Abstract:
1. A disc cartridge comprising: a cartridge body including a disc storage portion, a chucking hole and a head access window, wherein the disc storage portion stores a disc therein so that the disc is rotatable in the disc storage portion; the chucking hole is formed on the bottom of the disc storage portion so as to get the disc chucked externally; and the head access window is also formed on the bottom of the disc storage portion so as to allow a head, which reads and/or writes data from/on the disc, to access the disc; a first shutter and a second shutter, provided in the disc storage portion, for exposing or covering the head access window by rotating in the disc storage portion; and a rotational member, which is provided so as to rotate in the disc storage portion and which is interlocked with the first and second shutters, wherein the first and second shutters are interlocked with the rotational member so as to rotate in mutually opposite directions and at respectively different velocities.