Many of us are really found of videos and watch
videos at youtube or Google Videos.  Ofcourse you prefer to watch good quality videos at youtube than those worse videos.
I am gonna show you a small trick that will do all the wonders, and now you can always get good quality youtube videos.
Step1: Click to video that you want to see, the link will display on Address bar.
Example:  http://www.youtube.com/watch?v=Ne1l6VNkuLM
Step2: Add &fmt=6 to the end of that string.
That address like:
Optional Step: To get more quality youtube video
.Add   &fmt=18 to the end of that string, you’ll have the best quality video with direct download link !
Example:
Note: Appending &fmt=6 to the URL delivers a 448×336 resolution version of the video and appending &fmt=18 delivers a even better 480×360 resolution version.