So, I have a bunch of SACDs laying around that I haven't played in ages... don't have a SACD player anymore (used to have an Oppo).
Anyway, I found a tool and ripped one of my SACDs and ended up with a bunch of .dff files (one for each track on the disc). Do you know how to build an ISO from these? I can then test in my Q5 and see if it plays the ISO.