Export from Movie Maker by Simon Davis
Re-distribution and modification permitted with attribution required under the Creative Commons Attribution 3.0 Unported Licence.
When you have finished editing your video project you will need to export your movie to share it or view it outside of the Movie maker program. Movie maker offers lots of different options for exporting video which will compress your video in different ways.
Unless you know you need your video for a specific platform (e.g. mobile delivery) you should choose a high quality option.
Saving video for upload to LUTube choose Save to my computer - Other settings - Video for local playback (1.5Mbps).
For more info on export video from Movie Maker see: http://www.microsoft.com/windowsxp/using/moviemaker/create/formats.mspx