- Designed for gentle dry cleaning of the laser optical system in a CD player ,- Improves the playback quality of sound carriers ,- Accompagnied by music from Carmen Fantasy , ,Note for Consumers: ,Do not use this cleaning disc in slot-in drives. ,Insert the cleaning disc into the player in the same way you would a normal disc. Ensure that the arrow on the cleaning disc is pointing to the cover of the disc drive. - Medium: CDs 2 years legal warranty only