> M.A.C.H. 3 and Us. Vs. Them also do this, although in their cases it's for in-game > target data and not executable code (IIRC).
Correct me if I'm wrong but wasn't M.A.C.H. 3 practically the reason MAME realized capturing output frames from a Laserdisc player and then store them lossless into a CHD was not an optimal idea to keep preserving data this way?