By capturing one frame of video, the quality of the picture produced is better then that of a digital camera. Also, you are not limited like you are wit h a digital camera. For example, video close ups are simple where with a digital camera they would be out of focus. Anytime that you want to take a picture from a video for a document or presentation or if you want a detailed close-up you will want to use a screen capture of video.
Video cameras are portable so the filming can be taken anywhere.
The capturing must be d one on a computer that has a special video capture board installed. To produce video on your system, you first need to have the proper hardware and software. The installation of the hardware and software should not be any problem. With the exception of the video capture board having conflicts with other hardware. Also for this kind of work the better the computer the b etter the production of the video.