Here's what it gives me back:
"Unable to parse option value "dv_ntsc": undefined constant or missing ("

? Any ideas guys

Looks like you are not the only one with this problem:
http://kdenlive.org/forum/rendering-failed
I assume you also use Ubuntu?

I actually ended up fixing it with a restart... have you tried doing a restart?

Oh, I just see I posted the wrong link in my previous reply, wanted to post this one:
http://kdenlive.org/forum/can-only-render-very-short-videos

"Unable to parse option value "dv_ntsc": undefined constant or missing (" is NOT an error message; it is a totally harmless warning unrelated to your failure.