Nak makes great HU that seem to play CD-Rs without hesitation. I would get the current model which is the CD-45Z, I believe. You should be able to find it for 270-300.
The alpine you mentioned in your other post has a negligibly better internal amp. The CD-45Z (or 40Z) have a cleaner look to them. SQ would be very similar as any other HU with similar features/price.
Woz, did you poop on the HU? if not, you may want to to make HonkeyTonk Monkey happy. He really likes pooping on those stock HUs.

Dave