Like Charlie, I listen to cds all the time. (I also have a turntable to listen to old records.) Except for the occasional bad cd, I never have any fatigue or pain. Nothing bright. And I don't like bright. My speakers are not rolled off. I have measured them. Very extended. I use primarily meridian cdps, but I don't have a problem with a denon cdp in my office either. The difference between analog and digital nowadays has nothing to do with listenability or absence of fatigue. Cds are easy to listen to (except those BMG copies, or whatever they are).
Paul
Paul