[tripzilch]

I guessed as much, didn't look for it because until typing the above comment I never realised this was one of my minor annoyances with mpv :) Will change the setting in my config soon :)

[Nadya]

The naming was from a different media player. I also mixed up "Play Next" with a different media player unfortunately. I believe mpv requires you add the next items to the playlist. However if you intend to play the folder anyways, you should just call the subdirectory and mpv will treat it as a playlist.

But I found the relevant mpv config I was thinking of:

    --idle=<no|yes|once>
    Makes mpv wait idly instead of quitting when there is no file to play. Mostly useful in input
    mode, where mpv can be controlled through input commands.