I'm probably the only person who doesn't know this, but exactly how does tagging work? Obviously there is information coded on a CD. However, the information can't be as clear as the CD title and tracks title because the systems I've used go to an internet site. Also, while the information is usually very accurate for pop CDs, it is nonexistent or wrong for other CDs like older jazz or classical. Sometimes the entire CD is wrong, sometimes the track order is wrong (this seems to happen with the All Music Guide that Windows uses), sometimes it's as small as Bruce Springsteen being classified as Goth Rock. Can someone explain?