Here's a simple test... Download most any TechN9ne, Dubstep or Pantera and listen for a crunched sound during the bass kicks. It sounds like breaking celery. That distortion you hear is clipping (you can see it in a wave editor). If you hear a crackling sound, that is the distortion that Mp3's cause to audio files. I can actually tune my ear to the sound that Mp3's make and I consider myself partially deaf... //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif