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dalowedalowe Posts: 6Members, Plex Pass Plex Pass

Read through several posts but have not yet found the answer, and am still confused. Is there a way to use Plex but optionally with subtitles? In other words, to have the ability during a movie to turn on or off, dynamically, subtitles?

If so, I imagine that depends on how a movie is brought into Plex. I have a purchased DVD. When I rip it to my server, I have the option of including subtitles or not. But if I include subtitles in the rip, it appears that I am stuck and they are always on when I play in Plex--no way to turn it off. Am I missing something?




  • tom80Htom80H Posts: 2,047Members, Plex Pass Plex Pass

    when ripping a disk, subtitles are usually included in an image-based format (e.g. VOBsub for DVDs or PGS for Blu-Rays). This is basically a sequence of pictures where each picture represents one subtitle -- each of them with a timecode when to appear/disappear.

    There's a lot of clients which cannot deal with those picture based subtitles. Also... formats like e.g. mp4/m4v don't support embedding them.

    Therefore, many apps interpret "including" a subtitle as "burning them in" -- what this does is basically it merges the subtitle picture with the video and outputs 1 combined video. This is usually called hard subtitles (because they're hard-coded and cannot be switched off).

    To allow turning subtitle on/off, you need to get them into the movie container as a separate stream (same as video or audio tracks). This is called soft subtitles.

    • Option 1: use a container which accepts image-based subtitles (e.g. MKV) -- assuming your client can deal with them. You can do this e.g. with MakeMKV (which will directly create a soft subtitle while ripping it) or MKVToolNix (which can mux the subtitle file into an existing MKV file)
    • Option 2: get a text-based version of the subtitles and mux it into your existing video (MKV but also MP4/M4V, others) -- many clients can deal with those. You can use a service such as SubZero or subtitles.org to download the right files for your movie... alternatively you can use an app to convert the image-based original subtitles into plain text (like a scanning app which recognizes the letters) -- there's a number of apps which can do this with varying quality results. On my Mac I used to use Subler which automatically converts the image based subtitles to text based ones (SRT) when adding them to a movie.
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