I've been creating and upload mp4 videos to Youtube via website for years.. Suddenly, Youtube must have changed the accepted files because even previous files I've uploaded, now say Upload Failed, Failed to Convert. It shows a picture preview from the video and everything. I haven't changed anything, even previously accepted videos are now rejected. I cant to anything to get them accepted as an mp4. Is anyone else having this issue? Using Cam8, also tried with trial of Cam9, all denied.