HarryPierce: So could one then postulate that playing a CD-R is a good test for the condition of a CD player?
Yes - if it can't play a CD-R (or starts having problems playing any CD's) it's probably some electronic problems -like bad capacitors.
However -if you bring it to a B&O dealer, they'll probably tell you, that the laser/or CD-mech is dead -and they need to install a new one.
Or -if it's an older model, they will tell you that they can't get any spareparts anymore. Don't believe that!
In most cases it can be repaired, if you find a serious repair shop. (Some here on Beoworld can fix it too, depending on where you live).
To your previous question about Beocenter 9500:
I have one of these too -and it plays anything: CD's, CD-R's and CD-RW's. So the one you have seen could probably be fixed by the right repair-guy.