VLCJ and playlists
When using VLCJ if you run into errors trying to play a media file you may need to use a playlist.
When any file gets played by VLC it is part of a playlist. The playlist may have only one item in it, but the playlist is still kicking around in memory.
The following link provided some usful tips for using playlists with VLCJ. http://stackoverflow.com/questions/6545649/stream-multiple-files-from-folder-using-vlcj