Windows 7 Tip: 
recordMyDesktop is a program that captures audio and video data from a Linux desktop session, producing an Ogg-encapsulated Theora-Vorbis file. recordMyDesktop’s main goal is to be as unobstrusive as possible by proccessing only regions of the screen that have changed. RecordMyDesktop can be tweaked to your heart’s content by changing the sound and video quality, frames captured per second, mouse cursor style, compression, and whether to record the current window or the entire desktop.
See Also: How to Run Linux apps in Windows
Installation:
Ubuntu users can install recordMyDesktop and gtk-recordMyDesktop with:
sudo apt-get install recordmydesktop gtk-recordmydesktop
All other Linux users can snag the appropriate package in your distro’s repositories or at the project homepage. RecordMyDesktop is a free download for Linux only.
hey dude thanks for this utility is this also work with fedora ?
Try Istanbul. It’s way better. Works with KDE, GNOME as well as XFCE. Get it from the synaptic package manager.