Apologies - I haven't had time to read through all of this thread, but I may have some useful stuff. Haze pointed me in this direction via his blog. I have almost all of the round corner Tiger LCD games (over 100 unique games). I would be happy for you guys to try to preserve them in MESS. Is this possible?
I don't think it is likely that the ROMs can be dumped non-destructively, but I could be wrong. These games generally have the chip bonded directly to the PCB and then globbed with epoxy. I've only looked at some RZone games and a few Konami games, so I'm not sure what chip the Tiger games use. Could you list a few titles? I can do some research.