'I was having problems playing songs on Musicmatch Jukebox, from one of the cds I ripped to My Music. I tried to delete the artist's folder but it won't let me (cannot delete file: cannot read from the source file or disk). I opened this folder and saw two folders with the name of the album on them. I was able to delete one, but when I tried to delete the other I got the same error message as before. Anyone know what's going on here?

It sounds like a program has this file locked so you are unable to delete it. Close down all open programs that might be using this file and then try to delete it. It might also be worth doing a restart in case there is some background process locking it.

Done many re boots, each time try to delete with no luck, even deleted it from musicmatch library still there very stubborn :(