Well,
IMHO I wouldn't be much concerned about the avg bitrate as long as I am able to play fine KDVDs in my 28" TVset.
Hopefully they will look good also on my 32" TVset as soon as I buy it...
In the Linux vs Windowz field I'd say I would be glad to use Linux if it were a bit more user friendly.
It still got a lot of dark folders where my ideas get greyed...
Also I'd agree with Hydeus on the "you have to ugrade from x.xxx.1 to x.xxx.2 if you want to play KDVDs on your Linux box".
That's the worst thing you'll get in a very good OS built from code shared on the net and not by a big company as big blue or M$.
By now I'm stuck with M$ XP Pro and I'd like to get used to mencoder/mplayer/ffmpeg or whatever so that when time comes for Linux I will be in good shape to make my KDVDs
So, russian pal, where would you start if you were me? I already d/l Windows' mencoder toolame and your script.
Now what?
Cross your fingers guys. Maybe sh0dan and the guys will port avisynth to Linux