That is incorrect. Those paths you posted are the location of my standalones i created. (repacked)
1. I've been reading about this beaut of an app, but I haven't been able to find in any online description thus far exactly where on the HDD one saves the various roms? Does it all go under the GAMES folder so each chore selects the roms it is compatible with from there, or is there a separate folder somewhere for each individual Chore?
Roms can be placed anywhere. There is a built in file browser in RetroArch where you can find your roms anywhere. The best place would to be make a ROMS folder on root of a HDD either Internal or External. then they can even be sub folder from there for each system or emulator core.
had you on the right track didn't read rest of the thread until after i posted.