Exporting a 40 minute video on a PC should not result in garbled, choppy audio. I literally just exported the edited content and the resulting mp4 is not 'legible.' I went back into Rush to check the audio again, sounds fine in the application. No effects have been added, no color filters. There aren't even any titles added. There's literally one dissolve at the end of the presentation. This is not good. I chose Rush to do this work, because it's simpler than full premiere. I am disappointed with the resulting audio sounding, almost like a bad call when you only hear every third word.