I have OCD but I have a completely different version of it, I mean I like my music but if anything it's my OCD relief to play music, jog memories, dance, sing, obsessively want to accumulate records and CDs. The MP3 thing is just a way of listening to it all. I see where you're all coming from. It's what you call "anal".
I don't worry about labelling my mp3s perfectly, I like the real hard copy if poss, and then I'm happy so long as the artist - track name (mix) is on the laptop/hardrive.
My official OCD is much more worrying than mp3 labelling lol. However, it all starts somewhere and when I was younger I'd have been just like you all!