Graphical tool to Download and Convert YouTube Videos - CaC

CaC (Catch and Converter) is a simple graphical program that converts videos from Videosites like Youtube, Google Videos, etc .. It's pretty simple to use, just copy the link of the video to download, choose the place for download and the output format.

For most profiles to work, it is necessary to have the unstripped version of the libavcodec in the multiverse repository, which can be obtained by installing ubuntu-restricted-extras or kubuntu-restricted-extras or xubuntu-restricted-extras as suggested by this package.

Download and Install CaC: 
Ubuntu user can download CaC from here and can install it using your package manager.
Once installed, you can find it in Applications> Sound & Video> CaC - Catch and Convert.