You Tube High Def Code ?

Add this string of characters to the end of any YouTube url and get the High Def version

&fmt=18

.

 It works on most of the videos, but the older ones don’t seem to respond.   I’ve always complained that YouTube videos look horrible and this at least makes it a bit clearer.

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http://www.youtube.com/watch?v=7mIpwx5lA5I

http://www.youtube.com/watch?v=7mIpwx5lA5I&fmt=18