iTunes Duplicate Remover (iTunes D.R.)
Full user review
"Very disappointed--it nearly froze my system."
None that I could get to. Maybe if I waited a week for it to finish, it might have done some good, but I did not want to take that time.
It simply crawled along--I stopped it (had to do a hard shut down) after several days of running thru my large iTunes library. I have removed it from my system.
I should have checked out more reviews before I downloaded and paid for this. Buyer beware.