In those cases I label my live versions differently.. what knife was talking about is an iTunes bug.. it happened to me on my old ibook.. every so often itunes will duplicate a song. Not automatically give you live versions. we mean going from just having NOFX - Bob to having NOFX - Bob[1], NOFX - Bob[2], NOFX - Bob[3] etc etc etc. That's iTunes 'backing up' songs and making EXACT copies of songs.