cd burn problems

why do I get pops and distortion when burning with audiocreator 1.5. I burn waves 16/41
and do not exceed cd limit? also when I use media player 11 I get error message cannot open wave file or no media rights .?????? I defrag, This is driving me crazy

xp3, intel pent 4 3ghz, xp pro sonar 8.3, audio creator ,