The videos from Barrack Obama's YouTube channel ChangeDotGov have a small download link below the player. "YouTube is rolling this out slowly, initially with content that aspires to be consistent with principles of open government. I'm told it will be offered more generally. In any case, it is an important development. There have always been hacks for slurping down YouTube videos. But it is a valuable step that YouTube encourages and supports this sharing," notes Lawrence Lessig.

Source:→ Google System