Many years back I spoke with Aaron about any need for LD titles as my friend has all of the laserdisc titles in the warehouse. Aaron assured me that all titles had been dumped.
As far as I know, all laserdiscs games have been aquired and dumped at least to the same standard as cliff hanger, cube quest, and the other few titles in Mame. There had been a plan to perhaps do it all again in a using a better method, but I don't think that happened. Sadly for reasons unknown to me, the other titles remain unreleased.
DL and SA wont be in Mame and thats fine. We have plenty of alternative ways to get our DL fix. The blu-ray and ipad versions are fantastic.
As for all the other titles, they sure would be a welcome addition.