Screen capture (video) software on Ubuntu

If you want to record your Ubuntu desktop screen then what will you do? I searched Ubuntu software center and found 3 entry for desktop video capture/ record.

First of all I like to say about 'Recordmydesktop'
It can captures audio-video data of a Linux desktop session
The application produces an ogg-encapsulated theora-vorbis file. recordMyDesktop tries to be as unobstrusive as possible by proccessing only regions of the screen that have changed.


Another desktop recording application is 'gtk-recordMyDesktop'. It is a front-end for recordMyDesktop

Adds an easy to use graphical icon on the GNOME toolbar to make a pleasure use and configure the audio and video capture and screencast application recordMyDesktop.


Another desktop recording utility/ tool 'Record it now' can be found at 'Ubuntu Software Center'. It is a helpful desktop recorder.
RecordItNow is a plugin-based desktop recorder for KDE. Currently it supports recordmydesktop for recording and ffmpeg and mencoder for encoding.