*EDIT* MediaMonkey gets the job done easily and efficiently *EDIT*
I have been collecting my music for about 5 years now and my collection is a bit messy. I have some doubles, some songs where there is wrong info. And some songs with bad 'tags' and I want a clean collection. I would prefer if the app was free but don't mind paying a bit if it really works. It must just make sure it gives the right name,artist and album.And delete doubles.
Also if it could have:
1) Album Art would be nice.
2) My music is in lots of folders(in one large music folder), so if it could re-arrange them so there are only artists folders with inside it has album folders.
Thanks and let me know.
PS: If I have to use multiple programs I don't mind.