Anyone know of a good read or video on how this is done? Recently I've gotten interested in Mame and how the Mame roms are created from the actual arcade machine eproms on the board. Of particular interest Is why some Mame roms are 1/10th the size of the original machine games. Here's a link where SNK quote the size of several of their games as over 100mb in size and their machine being able to handle up to 300mb sized games In 1992. Watch at 4:30 https://www.youtube.com/watch?v=K1yyAA1wgDE Then you look at the Mame rom for the game and it unpacked to a size of 16mb! So I'm curious what goes into reducing the size and why it's done by the people who create the roms. What do they sacrifice In the original game iproms? Sound bitrates etc?
Thanks In advance.