Do u actually have two songs of each or its just the library thats seeing that?
if its just the library, delete the entire library (miking sure u tell it to delete from library only) dont tell it to delete from the pc then rescan ur music folder.
With all due respect John, I am the head of IT and I have it on good authority. If you type "Google" into Google, you can break the Internet. So please, no one try it, even for a joke.........It's not a laughing matter. You can break the Internet.