All these files are of the same video clip lasting 21 seconds.  Windows Media Player (WMP) requires that you have the correct codec installed for the film you want to watch and isn’t terribly good at finding them itself.   If you have problems playing any of these files in Windows Media Player go to http://www.videolan.org/vlc/ and download and use the free (and much better) multi platform VideoLAN media player instead of WMP..

You may also be able to see the video below.