Obviously, no iOS devices like the iPhone and the majority of Android devices can directly playback DSD content (because none of those devices support DSD).
I'm not sure this is true. I'm not a tech guy - so - I might just misunderstood, but for the iOS App Store there are two products, which seem to do exactly that:
As far as I understand both players work with files stored ON THE DEVICE - not via streaming. I didn't test them - sorry.
As far as I understand, it is possible to play DSD files - which isn't the same as sacd.iso. It would be a nice feature, if JRemote could play DSD files (locally stored) and even better if JRemote could play sacd.iso and perfect: via streaming...
Coming back to your suggestion for the DSD conversion.
First and most important: In a perfect wold I would like to keep the sacd.iso file and not DSD files for each track (sorry for this but I just learnt very recently about the differences). As I understand, DSD is stereo OR multi-channel. Implying I'm loosing one or the other or I end up with redundant data...
This in mind: Does the feature "Convert audio if necessary" work with sacd.iso or only with DSD-files?
For the sacd.iso scenario I have negative results: The iPhone can't play the file if transcoding (to mp3) is disabled. - Can I test somehow, if I followed your advice on how to configure MC?