Powerdvd I'm sure that the read it clearly option in powerdvd 7 is causing this problem for you. If I enable that feature, then subtitles are always on - if I disable it, then they are not. Q.E.D.

standalones. subs will not show on dvdfab output dvds unless you've selected them to be forced on or have always on in your standalone player settings - read the earlier advices about the green arrow. If there was a bug in DVDfab we'd all be able to reproduce the problem & that aint the case.