I made a video using a 3rd party audio (music) file and overlaying still images on the audio. I produced this as an mp4 and played it in VLC, no problem. Uploaded it to Youtube but both the video and audio stuttered toward the end. I deleted the video from Youtube thinking maybe the upload corrupted the file somehow. I uploaded the exact same video to Youtube again (absuolutely no changes, no re-produce, the exact same file) and this time it stuttered in the the beginning.
Is this a sample rate issue that isn't playing nice with Youtube? Or maybe an export option? What could cause this? Please help.