Well, no one's replying to this post in the mastering section, so maybe i'll try it here... After I've completed my music and I put it in my cd player, it sounds perfect everywhere I've heard it so far, but I'm getting some "crackling" when I played it in my car through a portable cd player. I was wondering perhaps if anyone could perhaps give me a little advice as to how to clean that up? It has to be something dealing with the frequency of the signal. Maybe my car stereo just doesn't want to accept this signal. Or perhaps it's the portable cd player I have hooked up to it? But even then shouldn't that not matter? I have Cool Edit Pro 1.2a and WaveLab v4.0. I have Cubase too, but for some reason that's not working right. It's speeding up my waves in playback. So I'm down to just CEP and WaveLab. Any suggestions?