On 2025-02-20, Dale <rdalek1...@gmail.com> wrote:
> Well, it plays some older .mkv files already. These are some type
> of NEW .mkv files. I forgot to mention that point. I have a lot of
> other videos that are .mkv and they play fine, have for ages.
OK, so the problem isn't with the .mkv container format.
> It's some new thing that isn't playing anymore. When I click on
> one, it opens and then closes. Sometimes it is just a quick flash.
> Even VLC won't play these newer files. I'm not sure what changed
> with .mkv but it seems something did.
I doubt anything has changed with .mkv.
> I figured a new codec or something.
Indeed, it's almost certainly an unsuppported codec type or codec
parameters. Try this command on some of the files you can't play:
$ ffprobe <whatever>.mkv
