I have converted lots of SACD Iso’s too.
There are still lots left
Right now I use either JRiver and/or Audirvana or Foobar to play Sacd Isos directly.
Still, it feels not right to me that I have to use other (much cheaper) software to play SACD Iso’s.
I sincerely hope this feature is added to Roon sooner than later.
thank you.