http://windows.microsoft.com/en-us/windows-live/movie-maker#t1=overview
I feel as though, a lot of people have never used Movie Maker for compression.
If you've got large files, then run them through Movie Maker and play around with the rendering settings till you find a good balance between quality and file size.
I can take 30Gigs (30 Minutes) and turn it into 1.2Gigs at roughly 720p
So, please take some time to try and compress the videos for those who have to upload them.
I've got a very limited time frame for uploading and 1.2 gigs takes about 30mins - 60mins to upload.
I can't be uploading large numbers of videos each day if first I have to download them and then re-upload them all over, I just don't have the time for that kind of massive amount of work, and I don't think the other uploaders do either.
It's not hard to take 20 minutes and drop them to 800mbs
Play around with it, and try and find the settings that are right for you.
Just please for the love of god, unless one of the uploaders has a 5mbs upload speed, don't be throwing out HD super high def videos.
That's just needless file size