Hey folks, so I've seen a ton of questions about how to reduce video file size in Movie Maker, but I'm actually facing the opposite problem: I want the highest quality output possible when exporting/saving a video, and I can't seem to get that to work.

So, for example, I have a 4 minute video capture (use OBS) that was recorded at 720p60fps.  I use the custom settings in Movie Maker when saving the video (settings: 1080x720p/20-100k bitrate*/60fps) and the estimated size per minute is something like (with high bitrate settings) say 700mb a minute, but when i save and it finishes the file size, which for a 4 minute vid should be in the ballpark of 3GB, is only 400~MB and the video quality sucks. I just want to know how to keep that estimated file size per minute because I'd rather have higher quality video that takes longer to upload to youtube than lower quality/faster upload. 

*meaning I've tried various bitrates within those parameters to no success.