@ Lathe; RE: In response to Peter_A,
Unfortunately, it looks like these files have deliberately hidden the x264 settings.
I love mediainfo but then I use exiftool(-k) to get a second opinion on any troublesome files. Its a free open source file info reader that handles just about any type of media file and really gets down in the minutiae of file info. Check it out Peter_A,
(
http://owl.phy.queensu.ca/~phil/exiftool/)
One of it's features is •Decodes a riddle wrapped in a mystery inside an enigma, lol.