I am no expert in this. In Win 10, I have successfully converted Powerpoint 2013 files with built-in voice narration to mpg fies that can be viewed on my computer. However when I burn these onto a DVD that can be sent to someone and viewed through his DVD player, only the video file is recorded. The audio portion is missing. I have done lots of searching on the web, and tried many times i vain to sole this. I would appreciate any help, using basic terminology, please!