Using a patented motorized radial resurfacing wheel, the SkipDr fixes scratches in many types of optical discs, including audio CDs, DVDs, game discs, photo discs and data CD-ROMs. The SkipDr system not only repairs discs, it also helps you keep your discs in optimal condition for years to come. Includes AC adapter, resurfacing fluid, buffing square and drying cloth. Battery use requires 6 AA batteries, not included.