Since you replied to this post, I will reply here, too. I usually see this on older DVDs, ones produced in the early 2000s. I think it's most common with material that has been broadcast in North America with CCs. I think you will only find them on NTSC DVDs, not on PAL DVDs. VLC can't find the CCs ...
My apologies but I think I may have first posted this topic in the wrong forum, namely "MKV file processing and playback". I think this forum "DVD error reports" is probably where it belongs, although one can argue it's not an error, maybe more questioning a design decision? The ...
I ask because I've got some DVDs that have no "vobsub" type subtitles, but do have closed captions. And it's my understanding these CCs are carried in the video track in what is called user data. I have found that ccextractor (from http://ccextractor.sourceforge.net/) cannot find the CC da...