To download the video using keepvid, can do the following procedures:
1. Open the youtube site, select the video will be downloaded
In this example I use the link:
Video Title: ford sable smashes aerostar van (about car mercedes benz , ferrari)
(you can see in your browser / addres bar)
2. Open keepvid site, please click here
enter the youtube link (url) of the video file will be downloaded
Click the button "Download"
3. There are 2 options, namely high quality and low quality
select one of them.
Click the "Download"