04-18-2015, 09:57 PM
I'm pretty sure this would be similar to ripping from modern PC games. That is, extracting from the files (or RAM dumps if completely necessary). I haven't done it with MS-DOS games myself but I have looked at Windows 95 games (Warcraft 2 and The Neverhood) and those have their resources in archives like most PC games.
Is there a specific game you're looking to rip from?
Is there a specific game you're looking to rip from?