Try VideoGet. It is a tool for downloading your favorite video clips from
more than 350+ video websites. It supports such websites like YouTube,
MySpace, Google Video, Yahoo Video, VSocial and a lot more. VideoGet supports
AVI, MPEG1, MPEG2, WMV, FLV, MP4, 3GP, MP3 file formats, so you will be able
not only to view it, but also put it into your iPod, mobile phone or any
other portable device
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Also you can check this simple video tutorial:
Ostap