youtube high resolution quality fmt18 / NR=1

exemple:

l’ajout &NR=1 après le code watch

http://www.youtube.com/watch?v=yX-4C3W6Pnc&NR=1

l’ajout du code &fmt=18

Normaly you will ask : What is the Difference on Normal Video and High Quality video on YouTube ™ ??

–	Normal Youtube Videos	High Quality Youtube Videos
Screen Resolution	320 x 240	480 x 360
Bitrate	≅ 200 kbps	≅ 900 kbps
Audio	22KHz 64 kbps Mono ABR	44.1KHz 96 kbps Mono CBR
Frame Rate	30	30
Video Codec	Flash Sorenson	Flash Sorenson
Audio Codec	Mp3	Mp3

There are two different formats for High Quality Youtube Videos, one is &fmt=6 and other is &fmt=18.
Once i post something on my blog about how to watch high quality videos on youtube by adding &fmt=18.

Adding &fmt=6 in the end of youtube Url will give you Youtube’s ™ new high quality setting.
Adding &fmt=18 you get a video transcoded from the original clip the user uploaded.