I would learn the exact art of extracting the various audio streams from the ISOs, and labeling them correctly. like: 6-Chan 24/96, 2-Chan 16/44, 2-chan. etc.
Yes, you are correct. I have a real good system, I do this.
Rip SACD, before I put into NAS I rename the file, for instance, Eat A Peach 5.1, then I move it over to the artist file, The Allman Brothers Band, now it is in the NAS. Then I add to the JRiver library, I do the same with the album title, Eat A Peach 5.1. Then when I am looking at the library I can instantly tell what is MCH and what is not. Also in the top right of JRiver, search box, I can type 5.1 and all my 5.1 albums come up, same for 4.0 and 3.0, super simple and easy.
Some titles like the Audio Fidelity series have silver jackets for MCH and gold jackets for stereo. I just went into HRAudio.net and grabbed all the thumbnails, and changed the cover art, super simple. At least for SACD, ithought I would be finished ripping SACD this weekend but likes like I have about 50 more to go, so we will see.
I plan on asking others after I read the threads on DVD and Blu Ray ripping, I got this.