Markw's correct. You'll need to use a different program to record the screen if you want it saved as a video file you can then post to something like YouTube. There's probably a lot of options out there, but I've been very happy with Movie Edit Pro Plus. Apart from being able to record your screen (which is a secondary feature for it), it's great for editing video and music.
As an example of the type recording quality you can expect, here's a video I made with it: Into The Stars - ArtRage Watercolor Tutorial Part 1
Nothing is easy to the unwilling.