Here are a few tweaks for CD that work:
1. Marigo Orpheus Crossbow CD Mat
2. Torumat CDX-16-3 Disc cleaner
3. Endust Anti-Static sprayed on the Marigo Mat
4. CD Stoplight pen
I have tried these and they work. The Marigo is better than the AudioPrism CD Blacklight mat However, I have not tried the Auric Illuminator kit that Garfish recommended. I would probably go with his suggestion. I hope this helps. Happy Listening! John