Transmageddon is a small, fast, and easy to use video converter available for the Linux desktop. Transmageddon is excellent for converting your video files into a format that will work on all of your media devices.
This great application also supports many popular video formats as well, just make sure you have all of the required the gestreamer codecs if you receive errors.
This is how you can install the Transmageddon video converter from the Linux command line today.
$ sudo apt-get install transmageddon