First of all, going through all my mp3's and retaggin all of them with a 2 or anything is a huge waste of time, i don't see how this is even a suggestion. I'm sorry if this sounds really harsh, but i'm pretty drunk! Have mulitpe copys of each of my songs is not even doable. RAID is the way to go, 2 hard drives, os thinks you only have 1 copy of each song, zero failure.