Upon receipt of a read command or a write command from an external device, a disk apparatus stores an obtained address as a primary address and a secondary address in an address storing unit, increments a counter value of the secondary address, and selects the secondary address of which the counter value indicates the largest number. The rail 16 may support a handgun holster 12 and one or more other firearm accessories 14 each spaced along the rail. The apparatus also includes a flap folding system for folding the top flaps of the box into folded and horizontal positions as the box is conveyed from a first end of the apparatus to a second end of the apparatus. The video graphics module also includes a blending module that is operably coupled to the plurality of video graphic pipelines. While driving, the user presses a special address search mode key and inputs the unique navigation code by keyboard or speech pattern.