The SACD decoder works great on all McH SACD ISO. After enabling SACD ISO support in "my addons"; go into configure and change the last field " Preferable area" to "Multichannel" from "All". This will set the default format whenever you play a file. Unfortunately there doesn't seem to be a way to toggle between stereo and Mch in the player, but you could let your receiver do the downmix if you want the stereo stream. For me, the only time I'd chose stereo would be if I'm using headphones; plugging them in turns on downmix of course. This decoder is a dream come true as I slowly migrate from Foobar to Kodi (the future I believe).