Depending on the speed with which you burned the CD's this can effect playback. I have one NAD player that worked fine with high speed burned CD's and another that hated them. I dropped down to 8x burn speed and the issues where gone. All discs played fine now.
I have also had issues with certain brands of discs not working as well. But fewer issues with this though.
You might want to change your thread title. You have the wrong model listed. You have listed an integrated amp instead of a CD player.