dhivyya, just dumping an MP3 into the Music folder won't add it to iTunes. And when you do add a track to iTunes by playing it, for example, it stores that track in a folder that it uses to hold all the other tracks and albums (and no, you can't just dump them there, either, you have to go through iTunes so that it knows that the song is there). So by editing the filename in wherever you stuffed the MP3 you accomplished nothing in iTunes. And when you edit the info in iTunes, it's not applied to the files you've stuffed into the Music folder without iTunes. Frankly, as chas_m says, you're overthinking things. Just let iTunes play your music for you, and don't worry about filenames. It'll keep track of them just fine. And when you add music, don't just dump the files into any folder, let iTunes do its thing and store them where it knows where they are. Let the computer do the thinking and just enjoy the music.