Hi Again,
I have just re-read your question....
WAV is an audio file format and the other is the project file. Neither of
these are actual videos.
Once you have your video organised in Movie Maker select File > Save Movie
File and then choose the quality you want the video to be. There are
several options available. What I do is create a full quality DV-AVI file
(this can take huge amounts of space) and then using the Windows Media
Encoder previously mentioned I reduce the file to a small ASF
format....then I send that to my website.
Best Wishes.....John Kelly
www.the-kellys.org