This doesn't explain the case when the author uploaded and downloaded a new file, and there was no big diff in file size. The file size diff only seems to be happening to the author's older video files.
It does explain it and likely adds more weight to it too.
Encoding additional videos takes a lot of processing power. When you upload a video to youtube, the higher-quality versions aren't available for sometime. There is likely a queuing system, maybe even a minimum weight time before a video is processed.
Encoding additional videos takes a lot of processing power. When you upload a video to youtube, the higher-quality versions aren't available for sometime. There is likely a queuing system, maybe even a minimum weight time before a video is processed.