And it worked to an extent - but it failed to install two fairly majors chunks of the codec’y architecture on linux (i forget which two exactly).
I also note that there are some suggestions of using packman repos as done in days of old - which in days of old i might have done in Yast.
But I questions that these days as people seem to suggest that Yast is no longer a ‘good’ way to install software in TW.
So, tell me; is there a safe, standard, and straight-forward way to install the necessary codecs via the GUI?
Correct, but he asked for a GUI method. And that, using YaST > Software > Software Management > Repository View > Select Packman > do the Switch to … right upper wy yis described in about every explanation on these forums in the sticky threads of Multi-Media.