I've found the problem and it was not a sonicstage problem. I have an iAudio U3 and I use iAudio's program jetAudio for converting movies for use with my U3. It was jetAudio that messed everything up. Editing the tags in either sonicstage or vista is totally transparent and all changes are reflected in the other program but if I edit a tag in jetAudio then the problems started... Sofar (I've used sonicstage for a week now) I think it's a decent program. Not at all as bad as it's reputation.