From reading, it seems that what upsets most peeps here is the dvnr (digital video noise reduction) applied that ghosts the image, looses fine detail, and generally reduces the overall quality.

I would suggest learning how to use the g-force avisynth script as, if nothing else, it will teach you a bit about avisynth and get you started in the right direction. It stabalizes the horizontal image shake in the movies, something that would be near impossible to do manually. Plus you could potentially apply it to other DVD's. But it's up to you after all, and nothing you do will make it any worse than it was to begin with (rofl)!