cleaning disc before playing. clean the disc with a clean lint free aloti wipe the disc in the direction of the arrow note *do not use so solvents such as benzene, thinners. Commercially available cleaners or anti static spray damage the unit. Insert a disc with the label surface down. Doing so may damage the unit. *do not try insert another disc when one has been already inserted. Doing so may damage the unit. Handle the disc by its edge. And to keep the disc clean. Do not touch the surface do not stick paper or tape no the disc. Do not expose the disc to direct sunlight or heat sources such as hot air ducts. Or leave it in a car parked in direct sunlight where there can be a considerable rise in temperature