A cartridge is provided with a case, which accommodates a recording medium at an interior thereof, and a label area, which is surrounded by a rectangular standing wall at an outer face of the case. At one side of the standing wall, a longitudinal direction portion is cut away. Thus, a cut-away portion which is continuous with the label area is provided. The label area is formed at a rear wall, at a rear side in a direction of loading the case into a drive device. The cut-away portion is formed at a substantially central portion, in a longitudinal direction, of an upper side of the standing wall.