Similar issue with a Simpsons... If I put a 512K Eprom in it, would the sound chips need to be upgraded or changed as well? I bought and sent a guy new game rom chips but they wouldn't work in his rottendog board, so I burnt the single rom chip from my simpsons but it doesn't have sound now on his game. Should I pull my sound rom chips and burn copies for him to work in his game or do the sound chips matter???? Not sure if they're paired to the 2 eprom chipset or if they'll work with a single eprom. Thanks ahead of time!