A small example of application...
The last 2 mkv files I tried with:
They had Level 5.1 and high ref count uncompatible with BD. Both files were 1920x1080, so no need for uncropping.
I left resize/uncrop to 1920x1080, set ref.frames to 4 and bframes to 4, used the original bitrate ~12MBit and after about 3hrs I got the job done.
Their input size was about 4.4GiB each but if muxed to m2ts they won't fit DVD5 media.
After processing and muxing to m2ts the final size for DVD5 became 4.3GiB, which perfectly fit the media and played great in my PS3.
And here is how Playstation3 performs with the bitrate from AVCHD DVD+RW disc:
I think it is the x264 encoder that performs brilliant in its last builds and creates such outstanding quality, being much faster than before.