With HandBrake you can successfully convert video from almost any format to a plethora of widely supported and up-to-date codecs. The free and open-source program is a GPL-licensed, multiplatform and multi-threaded DVD to MPEG-4 converter, available for Windows, Mac and Linux.
HandBrake is not limited to DVDs, it will now accept practically any type of video as a source. Its latest version was launched in late 2018 and comes with a wealth of updates and fixed issues. As ever you can get started in seconds by choosing a profile optimised for your device and navigating this easy to use interface.