I don't often use such programs to burn video to disk, but I know that this software
https://www.freemake.com/free_dvd_burning_software/ is very easy to use. You can find on the website a description of how it works and instructions on how to download, burn video to disk, or change the video extension. This is a free program, so you don't need to buy a license, it's a good decision to download, install the program, do what you need and remove the software.
