For the record, I tried with another software - DVDFab - and this was the report while opening the decrypted DVD folder:
Info for folder [D:\Video\Stargate SG1 Season 1-3\Stargate SG 1 Season 3\DISCO 1\VIDEO_TS\] ( )
Disc type: DVD-Video
Video standard: NTSC
CSS (Content Scramble System) protection is not found.
RC (Region Code) protection is not found.
RCE (Region Code Enhancement) protection is not found.
APS (Analog Protection System) protection is not found.
UOPs (User Operation Prohibitions) protection is removed!
Invalid PTTs protection is not found.
Invalid PGCIs protection is not found.
Invalid PGCs protection is not found.
Invalid TMAPs protection is not found.
Invalid CELLs protection is removed!
Invalid VOBUs protection is removed!
Fake vts protection is not found!
Bad sector protection is not found!
Structure protection (ARccOS, RipGuard, etc.) is not found.
PathPlayer is enabled!
Unplayable cell is not found.
As you can see, DVDFab is detecting something in terms of subtitles.
OK, I saved the same decrypted DVD in another location (let's call this new folder "BALAUSKA") from my Hard Drive. Then I instructed MakeMKV to open this DVDFab job.
The result:
So the whole thing was fixed, right?
Wrong.
MPlayer/VLC Player are, once again, telling me the Matroska file has no subtitles. MakeMKV is not recognizing anything.
So, MakeMKV can't detect closed-caption subtitles.
And DVDFab couldn't help me either, since I imagined after seeing that report, something wrong was done while decrypting the original Stargate disc.
Is there a way to convert CC subs to MKV?