Any way of extracting this "trivia track"?

[Lincoln Burrows]

I think I noticed this kind of Blu-ray content before. It's being displayed while you watch the movie. However it's not a subtitle, and you need the m2ts (BDMV/STREAM) from that folder which corresponds to the movie (let's say, a 20 GB file) to see this thing.

The thing is, I was planning on deleting the original BDMV/etc. folders and all contents and only keeping Matroska conversions here. But it seems I don't have a choice in this case. Am I wrong?

If you want to check this out, the title is "Fargo" (1996). I guess "The Sound of Music" (1965) has two of those, but there might be other titles.

http://img528.imageshack.us/img528/397/fargo5.jpg

I wasn't able to capture any image using my player but this is what this trivia track looks like.

[nibus]

I've seen these before but they've always been PGS (.SUP) subtitles. I think the Transformers Bluray has one too. You can demux them with eac3to and then remux them in MKVToolnix.

If it's not a .SUP then I guess it could be Picture-in-picture video... and in that case I don't know of a way to make PiP video work in MKV, but there might be.

[sneaker_ger]

http://www.highdefdiscnews.com/?p=17613
“Trivia Track” is included and can be toggled in the “Special Features” menu on or off. This is actually a new Blu-ray Disc exclusive feature that appears to be using BD-J (BD-Java). It offers some really informative trivia not just about the film itself but also on the studio (MGM) and etc. Very much worth enabling for huge fans of the film like myself.

You may be out of luck.

[Lincoln Burrows]

I found what I was looking for:
http://forum.doom9.org/showthread.php?t=158216

It seems such contents are in the BDMV/JAR folder, but like slideshows (in this case, it can be converted to Matroska, but it will not work properly), we need to use the original authoring/disc to watch the contents.

I hope someday this can be fixed.

That I can't convert to Matroska, it's fine, but the fact that I need a 30 Gigabyte m2ts file to watch such thing it sucks really, really hard.

Like I said, I was planning on getting rid of m2ts files and BD folders. Only keeping MKV files here, not reencoded, and (if necessary) with BDMV folders with the huge m2ts file (from the movie) removed, and only the m2ts files that will make me gain access to the extra feature menu (using a software like PowerDVD/Total Media Theatre from Arcsoft) and see contents that can't be converted to Matroska.

Such features are using BD's authoring to be displayed in the first place.

P.S. A small note: the first thing I am doing while using MakeMKV/MKVToolnix here is to not only convert the main m2ts to Matroska but remove the additional tracks like spanish, french, etc. that I don't want. The fact that I can't "touch" this 30 GB m2ts file (otherwise I won't see this trivia track) will force me to have two copies here from the same thing.