NOTE #2 – this works better on Firefox. Download the Firefox extension and drag it into the Firefox extensions.
NOTE – while this works – it only works for a while. Chrome will actually disable this extension and not allow you to Enable it. the only work-around I have found is to delete the extension and then drag the CRX file back onto the Extensions.
Padre of “Know How” has come up with an easy way to download Youtube videos. It’s an extension you add to your Chrome browser. When it’s installed, it will give you an option to download the video in a number of size options.
Download the script from this site.