It is an object of the invention to provide a disk case capable of easily determining a disk without changing hardware of a drive unit. A disk case of the present invention includes a case body in which a disk is held, an opening through which a portion of the disk is exposed, a shutter for opening and closing the opening, and a bridge portion located at an outer periphery of the disk and at the opening, wherein a dent having a diameter greater than an inner peripheral diameter of the bridge portion is formed at a position of a pickup moving path of the bridge portion.