I recently saved a video in an mp4 format at 1280 X 720 - 720p resolution and there is no audio. I had to save it under that resolution because the previous which is 1920 X 1080-1080p kept freezing while trying to edit the video which had audio, and when I saved it under 1280 X 720 - 720p there was no audio. I'm using VideoPad Professional 8.91. When I play the video in Quicktime or any of the other video players there's audio on the video, but nothing when I try to edit the video in VideoPad.