If it is an MSWMM file, that is NOT a movie. It is only a set of instructions- compatible with AND ONLY WITH Windows Movie Maker.
You have to open it with Windows Movie Maker, and then click "Publish to This Computer".
The program will compile the file into a movie, which you can THEN upload to Youtube.
Windows Movie Maker can Publish files in the WMV and AVI formats. I recommend WMV because AVI is obscenely large.
Also, to make a video 720p widescreen HD using Windows Movie Maker, follow these steps.
First, go to Tools/Options in Windows Movie Maker. Click the "Advanced" tab at the top.
Now find "16:9" under the "Video Properties" section. Click on it. Now your view will be in 16:9 widescreen. But that's not all!
Finish your movie. When it is time to publish, click "Publish to... This computer". Name your movie and set the destination. Click "Next".
Now click "More Settings" and in the drop-down list next to it, click "Windows Media HD 720p". Click on this. Now click Publish.
You just made a 720p HD video! Congratulations. Youtube supports 720p video. This is an example of a 720p HD Youtube video:
· 1 decade ago