Can anyone help me with this?

Heey So I just want someone to help me out with mi vids. When I upload a vid my vid appears on youtube as cut off like there are dark background. All I want is to maximize the video to all the youtube screen.
If you still don't understand me, I'll show you some examples.

Youtube vid like cut off :http://www.youtube.com/watch?v=PqXhXuMDvU0
Youtube vid with all the youtube screen: http://www.youtube.com/watch?v=npyjRF_RYYA

So my vids are like cut off, and I want them to use all the youtube screen. What to do? Please help.

Perhaps this is not the right section

 

Moved to Help & Requests.

 

This is called high definition(HD), what you're trying to do is make it Widescreen. You have to have the resolution in widescreen for this to work, either 720P or 1080P.

Code:

http://www.youtube.com/watch?v=8OnfLEDAcB4

and

Code:

http://www.youtube.com/watch?v=SeTbIkCE9uI

-LeetNeo.