When I confirmed the bug around unicode in the other thread (which happens here too), I found a found a issue with MaxFolderDepth which works about a little mystery where Wincab diddent found any songs.
That was happens the value was set to low, because it allways start from the root drive instead of the starting point of the defined songpath (which I through it was). Due with the mixed drives is would not work very good in wincab and can been very messed for new users with multiple drives?
This is not currently a bug but just some unexpected behavior.