I have a lot of playlists that I organize in a hierarchical folder structure. Subsonic can't see all of my playlists because they aren't in the root of my playlist directory.
example: (playlist folder is c:\playlists\)
c:\playlists\BestofWilliamShatner.m3u <--Found
c:\playlists\PartyMixes\Bob'sBirthday.m3u <--Not Found
Could you please, at the very least, add a feature to do a recursive directory search so that Subsonic finds m3u's nested within the playlist folder?