Any CD player will play CDR's; it's only some (most) DVD players that have trouble with CDRs.
As for the players you mention, I used to own the Res CD50 and thought it one of the most musical CD players I've ever heard, I definitely preferred it to the CD55, which I thought was more "hi-fi" sounding and had more treble glare. I eventually upgraded to the Audio Aero Capitole player which is tremendous, but then for 3 times the money it ought to be!!
Good luck in your search...
As for the players you mention, I used to own the Res CD50 and thought it one of the most musical CD players I've ever heard, I definitely preferred it to the CD55, which I thought was more "hi-fi" sounding and had more treble glare. I eventually upgraded to the Audio Aero Capitole player which is tremendous, but then for 3 times the money it ought to be!!
Good luck in your search...