Watch YouTube Videos in High Quality

1. Go to www.youtube.com                       
2. Click to your desired video, & then the link will display on Address bar.
3. http://www.youtube.com/user/d3x73r4by73?blend=6&ob=4       [360p videos]
4. Change d3x73r4by73 to your user ID [Email ID]
5. Add &fmt=6 to the end of that string. And it looks like,
6. http://www.youtube.com/user/d3x73r4by73?blend=6&ob=4&fmt=6   [480p videos]
7. Now enjoy your High Quality Video.

You are Done!