Thanks for the response (I’ve been reading a bunch of your posts..thanks again)
I’m still building my know-how on all of this, so I do appreciate your feedback on whether I have this conceptually correct:
Optimally I want to use 0.160 because it’s the newest, but depending on the emulator I am using, it may not support the roms from that set.
The rpi2 might not be powerful enough to handle some of the roms available in .160, hence why mame4all uses a subset of roms that have been optimized for speed. Other emulators might handle that set better.
I could put different roms in different emulators. Like some of the 037b5 roms in mame4all and others in advancemame, depending on which works better with that rom.
And finally, just so I understand, if I have a rom from 0.79 or 0.160 that I wanted work for emulator X which supports an earlier, I would find the dat file for that emulator, load the rom and attempt to rebuild it. I’m just unclear about what exactly is happening between versions and what the rebuilding process is actually doing. Somehow the rollback set helps here (http://wiki.pleasuredome.org.uk/index.php/Rollback_Set). Ack!
So many tools, so many concepts, head is spinning :-)
