BB FlashBack Express, capture video and record video from desktop computers

It's a good program to capture video in Windows, which uses a proprietary driver to better succeed in its intent, through which you can also register with the Aero interface of Vista. To coincide with the video, you can also record sounds.
And possible to save the recorded video in AVI and FLV, but there are paid versions of BB FlashBack, which allow you to save in other formats.
Unfortunately this is where the limits of BB FlashBack Express in this free version is very good if you just record a video from the PC and save it to avi or flv, but becomes useless if you want something more, for example, deal separately with the audio video (as dictating an audio commentary aside), or add images or annotations, or modify in any way recorded video (in addition of course to save in different formats to those already mentioned), and more.
If we like the free version, we are obliged to register (free) within 30 days.
Overall BB FlashBack Express is a program to capture video very interesting, however, that sin is only partly free. For this reason, as far as possible I tend to favor programs really free, I can not put it on the page real video capture.

BB FlashBack Express