BTW there is a definite issue with the naming if you use external subtitles.
For example, say a show has multiple English subtitles, in the selection, if two of them appear with the same name (possibly one should be en-us and the other is en-gb), you only get one of them if saving as external subtitles. Eg, for this you will get Xtreme.en.srt, Xtreme.en.forced.srt, and Xtreme.en.cc.srt. So you aren't sure when .en one you get, the US or GB subs.
