The playlist XML file concentrates all information necessary to drive a multiple clips video show. You may also read the reference document here: http://code.google.com/p/moodle-flv-player/wiki/UsingXMLPlaylists.
The XML playlist document structure starts with a root element “trackList” which holds single “track” descriptors.
A track describes a full clip with following information:
Note : XML Playlists are suitable for content publishers that have an industry level management of their content assets and are more likely to manage publications through textual metadata descriptors.