Handbrake for Linux

$ maczulu@ubuntu:~$ sudo add-apt-repository ppa:stebbins/handbrake-releases
$ maczulu@ubuntu:~$ sudo apt-get update
$ maczulu@ubuntu:~$ sudo apt-get install handbrake

To run it from the command line, enter:

$ ghb &

How intiutive is that? Anyhow, it's available form the Application menu.