Play High Resolution YouTube Videos

Popular video sharing site YouTube is testing a new service which allows to view high resolution videos using high speed internet. This feature is currently in testing mode. All you have to do is add a a parameter onto the end of a video’s URL (add the &fmt=6 onto the end each url) and you’re able to watch it in a higher quality.

For example, The Sights & The Sounds url is
http://youtube.com/watch?v=c_8mOcZ-qlI

Now add the &fmt=6 onto the end each url to watch high quality video:
http://youtube.com/watch?v=c_8mOcZ-qlI&fmt=6

Not all videos have been converted at this point.

You can add a the better youtube extension to firefox that will automatically use the higher res version whenever:

http://lifehacker.com/364408/b.....res-option

The original reporting on this hack:
http://lifehacker.com/362922/g.....a-url-hack

I looked on and found some articles like http://searchengineland.com/070821-203841.php which seem to show YouTube having video overlay ads since around Augest 21st 2007.
I don't think I've seen any before though.