have you tried them in another player ?, I have the same cd player and occasionally it takes aliitle time to read some cds, but then is fine, I called Mac and they said the laser may need to be adjusted. I just haven't done it yet.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.