How can I convert iTunes playlists from MS Win into OS X?
I found it was possible to export the playlists in XML format, which made life easier. 
After importing the playlists in OS X, 70% were correct, and the other playlists required some manual intervention. The problem was caused by the name of the songs which existed under several album folders. I have a lot of songs named "track01", "track02", etc...