> I have previously returned music to a store within my stautory rights period.
Well, if it's still got the anti-tamper strips and such on it, I guess. I've never tried to return an unopened CD, so I dunno about that (and how would I know I didn't like it, then?), but back when I bought CDs, I never had any success trying to return one that was opened. The stores have a policy against this because they assume you copied it first (to tape, originally).