The disk cartridge adapted for permitting the removal of a disk comprises a case having a disk slot for receiving a disk, an opening provided so that a disk motor and pickup can be inserted into the disk case, a disk access provided between two adjacent side walls of the case to communicate with the disk slot allowing the disk to pass through the slot, and a lid rotatably supported on the case for opening and closing the disk access, in which a disk guide passage is formed so that, when the lid is open, the disk moves a specific distance along the inner surface of the side wall of the case, abuts against the lid to change the moving direction of the disk, and is discharged from the disk access.