This profile will render videos of any resolution. But the compression settings is optimized for 720p widescreen in such a way that it's a fair amount above youtube's own compression(as of July 2011).
If you intend to upload 480p content, use my "Youtube 480p optimized" profile.
See to it that you have libx264 and libmp3lame installed on your system.
Go back to the list of rendering profiles