Here's more than you need to know -> http://www.repairfaq.org/REPAIR/F_cdfaq.html
My two points:
1. Use a CD Lens cleaner.
2. Try a Silver CD (no CD you made yourself.)
Audiophase CD player model # CD2664 June 1999 not playing CD's. And on screen display says " no CD", when their is CD's loaded. How can this be corrected to where the system reconizes that CD's are actually loaded into the player?