A full format wouldn't have helped, it would just take more time.
What you need is a video codec (compressor/decompressor).
Here is a link which may be helpful:
http://www.free-codecs.com/guides/
Then click on
Codecs_Supported_by_Windows_Media_Player_for_Windo ws%20XP.htm
Windows XP doesn't come with a video codec. Some DVD player software will install a codec if none are available.
The Cinepak codec is probably what you need.
Do a Google search for 'Cinepak codec' and install as instructed.
The text editor doesn't seem to like long URLS l