DonDan: Can you try
2.1.6.119 patch and see what happens?
What movie and region of BD is giving problems?
What OS and is it x86 or x64?
Also could you cut a small video only part with tsmuxer where it crashes x264 with wmv9 and upload to a place like
mediafire?
Microsoft and ffmpeg devs could use all the problem samples they can get, too bad they aren't easy to reach.
Hopefully we'll have a good, free solution soon from
ffmpeg's google summer of code VC-1 interlaced support project