@Reiza-(suggestion) Dont record your promo videos with SweetFX enabled

I just watched the promo vid for the brit pack on the steam store (good to see its coming very soon)

You can see a lot of graining (especially tarmac) which always happens to games recorded with SweetFX enabled. I get it a lot when encoding with Sony Vegas. Videos end up looking "muddy" if SweetFX is on when the video was captured. You notice it on surfaces during movement such as sweeping cameras.

Either that or you encoded at a low bit rate, which seems odd for a promo video.