Mcintosh mvp 841 & CD-R?

Anyone with this machine had any luck playing CD-R's. If so what brand?
I actually auditioned an 841 with a CD-R of my favorite tracks. Maybe I got lucky but it sounded great. That is my only experience with this player though... It's a Sony CD-R Audio. Arthur
Thanks for the responses guys. The manual states that CD-R's have a different color reflective layer from manufactured discs and MAY not play. I was just hoping that someone has tried variuos brands of disks and found one that works. Anyone else?
This is quite amazing, such a fine (and relatively expensive) DVD player not able to play a CD-R like even a mundane $ 99.00 player?