I have the Millennium Trilogy Blu-rays, which are in Swedish with burned-in English subtitles. The only options I have in Emby are to falsely mark the dialogue as English, falsely list the film as having no subtitles, or create a blank SRT file and falsely give the impression subtitles can be disabled. There is no option to have a non-selectable indication that there are English subtitles, at least as far as I'm aware?