1. Install software like RedTube Movie Ripper.
2. Install IE or Firefox scripts
3.Direct download it from website, such as http://www.redtubedownload.info/
I recommend this way because it’s really easy.
All we need to do 1.Copy URL – 2.Paste URL – 3.Click to Download.
You also can download videos videos from sites like youtube.com, google video, myspace, break.com, metacafe.com, dailymotion, pornotube, collegehumor.com, bofunk.com, ifilm.com, yourporn.com, nothingtoxic.com, badjojo.com, kontraband.com, blip.tv, doubleagent.com, totallycrap.com, redtube.com, revver.com
Redtube Download 