Cannot extract S_DVBSUB

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1

Latest version mkvtoolnix gui 97.0 on Windows 11. It cannot extract S_DVBSUB subtitles from an MKV.

Pastebin of the Media info

2

Welcome!

You’re right, it’s not supported. There’s no elementary stream format for it, and mkvextract simply doesn’t have capabilities to write MPEG transport streams (MPEG TS, usual extensions .ts or .m2ts) or MPEG program streams (MPEG PS, usual extension .vob or .evo). It probably never will.

3

According to the changelog Version 9.8.0 “Kuglblids” 2017-01-22 added support for S_DVBSUB in mkvmerge.

* mkvmerge: added support for Digital Video Broadcasting (DVB) subtitles
  (CodecID `S_DVBSUB`). They can be read from MPEG transport streams and from
  Matroska files. Implements #1843.

# Version 9.9.0 "Pick Up" 2017-02-19
* mkvmerge: MPEG TS reader: if the PMT lists a DVBSUB track, mkvmerge will now
  recognize it without having to find a packet for it within the probed range.

So it can mux it but not demux it?

4

That’s correct. That’s not the only container. MP4 can be read but not written either, for example.