Not sure why this is happening, but I hear a distortion on the highs and certain instruments when I download certain CD's onto my iTunes library and then listen to them on either my Bose, headphones, or car stereo. I verified my setting on my iPod, and even leveled the Sound Check option, but nothing works. Does this mean that it's better to purchased the songs directly from iTunes so it can sound better or is there another option I haven't figured out. Also, are all the songs on iTunes remastered and sound levels automatically adjusted already? I would really appreciate any response. Thank you guys!