To produce screen and video captures, you can download freely one of this tools :

For generating JPG, BMP, GIF image files : ScreenHunter. Show me features
For generating AVI video files : AutoScreenRecorder. Show me features

Useless Xvid sample video (I did not configure the xvid codec correctly…so it’s a bad compression result = 3.6 Mo / 14 seconds …it is not for a web context)