How to control this (pictures included) ?

[jugm]

What parameter (in NanDub) controls how much blocks will appear in areas like walls or something large enough colored in same tone but slightly different lighting ? I have attached zip with 2 pictures (they are 24 bit bmps - jpeg blurs subject area). Same frame. One (good) made by GKnot and second (bad) made by me with NanDub. Look at the closest guy's back on both pictures. On "good" picture it is made of little pixels (not ideal, but its how it looks in mpeg2) and "bad" has blocks. Is it because of different DRF used for this frame or something else ?

[Koepi]

No need to post pictures, everybody here knows that effect of blockyness.

You can get rid of that (well, not all of, but some) by tweaking your settings correctly.
Use motion based curve modulation, use asymmetric curve compression (15/25),...

Read the guides once more. And then once more again ;)

Regards,
Koepi

[jugm]

Thanks. Guess I need to try and try and try again with different setting :) Was just wondering as I got blocks on 1900 kbps 640x352 movie in scene with very little motion (guy stays bended while praying). I could swear that such bitrate alone would give great picture excluding scenes with quite extreme motion. But I'm wrong (no surprise here :D )

[Koepi]

This happens if the bitrate gets distributed wrong... might be luma correction - or the movie is hard to compress and you really have to tweak like hell.

Regards,
Koepi