Watch Youtube Videos in Hi-Def

Someone figured out how to watch any video posted on Youtube in "HD". (Not true HD, of course, but Hi-Res with much better audio.) All you have to do is put this code at the end of the url:

&fmt=18

You need a fast connection to watch them like this which is why they don't offer it as standard. I didn't figure this out; someone else did, but I thought I would pass it on for those who are interested.

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