Watch YouTube videos.. in HD!?

March 26, 2008 7:52pm CST
I was browsing YouTube today and came across an interesting video. This guy claimed that there was an extremely simple 'hack' to watch YouTube videos in higher definition (that is to say, with better quality). Check it out for yourself; What do you guys think of this? :D (Oh, and apparently if &fmt=18 doesn't work, &fmt=6 works.)
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