WPL playlist support
As pointed out in http://forum.videolan.org/viewtopic.php?f=14&t=49226
Windows Media Player supports WPL playlists which VLC can't open (neither 0.8.6 nor nightlies).
MSDN docs: http://msdn.microsoft.com/en-us/library/bb249685%28VS.85%29.aspx
Below is sample WPL playlist:
<?wpl version="1.0"?>
<smil>
<head>
<meta name="Generator" content="Microsoft Windows Media Player -- 11.0.6001.7000"/>
<meta name="AverageRating" content="0"/>
<meta name="TotalDuration" content="223"/>
<meta name="ItemCount" content="1"/>
<title>Untitled Playlist</title>
</head>
<body>
<seq>
<media src="..\..\Desktop\08-Violet Hill (Album Version).mp3"/>
</seq>
</body>
</smil>