I made sure to download a BIOS folder labeled DCBios with more folders in it with labels like 'NTSC-U_BIOS', 'NTSC-J_BIOS', etc. To continue, either load a binary program, or set the path to your BIOS file in the Path Preferences' 'No program is loaded, an no BIOS is configured (required to boot a CD image). I thought I was able to get House of the Dead 2 to work, as the lxdream program read 'HOUSE OF THE DEAD 2' at the top, but when I hit resume, I get this message:
I even have one labeled re2d2.part15, but every part between 4 and 15 are missing. Within that folder are now multiple RAR files with titles like 're2d2.part01'. When I download the ISO file for Resident Evil 2, I extract it using the app The Unarchiver (as told me to do so) and then it creates a folder simply titled 'Resident Evil 2'.
I've downloaded and installed the only Mac Dreamcast emulator I've been able to find, lxdream, but after that, I'm pretty much lost. I only have a Mac, which I understand makes playing video games a pain in the butt, but I'm not letting that keep me down! I'm new here and understand this is a good place to stop by for emulation advice.