Bascom

Yes, that is my issue on the Mega SG as well. I tried the JB7.7, reverted back tonJB7.6 and even tried JB7.5 but it is unable to load the .rom files. I am wondering if the files are specific to a particular device. I am interested in purchasing a rom pack for coleco like I did for Sega on steam, but I can't find the options that I know will work because I get the same cannot find bios error. Sms, sg1000, Genesis and gamegear all work fine.