This is a DVD that was a special bonus for the July issue of the magazine "Pachinko Ura Teikoku" from quite a while ago. I watched it a few times and then stored it at home for a long time. I haven't checked if it works because I can't confirm its functionality at this time. The case and DVD are shown in the images. I have included general precautions for all items in my profile, so please check them before making a purchase.