[Denaniel]

I have to confess that I don't have a blu-ray player yet. When I first switched from encoding in XviD to x264, I wanted to ensure that my newly encoded vids could play on a standalone player in addition to a PC or Mac. I've since learned that even the MP4 files I've made that are not "blu-ray compliant" will often play on blu-ray players anyway.

The reason for this is that most blu-ray players can not only play commercial blu-ray discs, but also MKV and MP4 files that meet the H.264 standard, e.g. files encoded with x264. Turns out "blu-ray compliant" really means that the compliant file can be used in blu-ray authoring software to compile a standard blu-ray disc for playing in any blu-ray standalone player.

This is equivalent to converting an AVI file to standard DVD format (VOB, IFO and BUP files in a VIDEO_TS folder) for playing in a standalone DVD player. You could convert an AVI file to MPEG-2 to create DVD-compliant files that can be used by DVD authoring software, just as you could use my blu-ray compliant MP4 files in blu-ray authoring software.

But just as many standalone DVD players will also play AVI files, most blu-ray players will also play MP4 files, regardless of whether they are "blu-ray compliant". When I first began encoding in x264, I didn't realize this, and so I made all of my earliest MP4 files to be blu-ray compliant. You could probably convert those MP4 files to standard blu-ray format, but there is really no need to do so.