YouTube has started to dabble in downloadable videos, offering an new download option for President-elect Barack Obama’s ChangeDotGov channel on YouTube. Some of the videos, particularly the “Weekly Address” series, now sport a “Click to download” link below the play button. Previously, all videos were offered as streaming videos that required an Internet connection while viewing. Now, a simple click initiates the download, which results in an H.264 encoded .mp4 file that’s playable on computers as well as many portable media players like iPods, as well as video-capable mobile phones.