Does dolphin not support .m3u?

[klepp0906]

I was under the impression it did, however after creating all my m3u files, i tried to load one and got a warning that says

"could not recognize the file xx/xxx/xxx/Game.m3u"

Am i missing something or does dolphin in fact, not support m3u? Trying to add shortcuts via steam link and unfortunately the majority of games I'd like to play are multi disc.

Thanks for the time and help!