CD-100 Compact Disc Automatic Changer (420-5060) Hints and Tips Faxback Doc. # 17009 Even though a CD is very durable, you should handle it with care. Keep the CD inside the CD changer or in its protective case or sleeve when you are not playing it. Handle a CD by its edges to avoid fingerprints which can prevent the CD changer's laser beam from accurately reading the CD. Your local Radio Shack store sells a suitable CD cleaner kit. Do not write on either side of the CD, particularly the non-label side. (Signals are read from the non-label side.) Keep the CD dry. A water drop can act as a lens and affect the laser beam's focus. If a CD skips or the kCD changer displays DISC ERROR when you try to play it, it might be scratched. Your local Radio Shack store sells a Scratch'n Fix kit (Cat. No. 42-127) that might help remove the scratch and stop the skip. See also "Troubleshooting." This unit is designed to work with the Optimus Pro Series Cassette Recorders--SCT-53 (140-0672), SCT-56 (140-0676), and SCT-57 (140-0677). This unit does not have a clock. (/ir-12/05/95)