Original file, captured from I Am Alive with Open Broadcasting Software.

Edited file, output from Blender... (note the heavy artifacting and colour compression in the well of the desk, just above and to the left of the girl's knee - now a uniform green rather than gradients of brown) ...with the following settings (informed by this page):

Does anybody know of a way I can edit a video in the Blender VSE without losing so much information and gaining so many distracting artifacts?

(Also - I know this is unlikely, but... is there any way to edit (eg. snip a bit off at the start and end) a video without having to re-render the whole thing? Takes so darn long...!)

All the best,

--Rev