===== Forcing YouTube to Play HD Videos =====

=== Normal Mode, Hi-Res and HD Mode ===

Provided that the user who's video you're watching uploaded a high quality video with the specs above, you should be able to force YouTube to display hi-def videos even though you're not logged into YouTube.

For instance, this video displays in normal mode:

[[http://www.youtube.com/watch?v=MfWXRybZS4A|http://www.youtube.com/watch?v=MfWXRybZS4A]]

Now, for the same video to display in hi-res mode or HD mode, the trick is to append ''&fmt=6'', ''&fmt=18'' or ''&fmt=22'' to the end of the URL.

  * ''&fmt=6'' increases the resolution from 320x240 to 448x336, Flash 7 video @ 900Kbps; audio @ 44.1KHz 96Kbps Mono CBR.
    * http://www.youtube.com/watch?v=MfWXRybZS4A&fmt=6
  * ''&fmt=18'' increases the resolution to 480x360, H.264 video @ 512Kbps; audio @ 44.1KHz 128Kbps Stereo. 
    * http://www.youtube.com/watch?v=MfWXRybZS4A&fmt=18
  * ''&fmt=22'' increases the resolution to 1280×720 (720p), H.264 video @ 1024Kbps; audio @ 44.1KHz 232Kbps Stereo. 
    * http://www.youtube.com/watch?v=MfWXRybZS4A&fmt=22

=== References ===

  * [[http://www.squidoo.com/youtubehd|Forcing YouTube HD]] - Squidoo