For those that want to use, create, or edit subtitles I thought I would throw in some great tools. First of all is Subtitle Edit. This is a great tool, can renumber and easily adjust times, as well as it can use speech to text to automatically create them (but of varying degrees of quality) It can also translate from one language to another. https://www.nikse.dk/ Next is VDSC. This is a free linear video editing program. This really comes in handy if you get videos with those annoying ads in front, like the Chinese Casino ones. With this you can easily remove things like that. https://www.videosoftdev.com/ Inviska MKV Extract is a great tool in you get an MKV file, and want to pull the subtitle out of it for editing. https://www.videohelp.com/software/Inviska-MKV-Extract