Are these regular CD's that you've purchased in retail stores or through CD clubs? Or, are these copies you've made form originals? Does this happen to all of the CD's you have, your just certain CD's. I have some older CD's from the 80's that obviously were not recorded as good as some of my newer CD's. With those I do hear that it is not as clear, but I never hear popping.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85