Same thing happens here. I do have the .zip bios with the 4 files in it as the dat shows, but no roms split into multpile files. Only the .col files.

I did try splitting 2010 into multpile 8k chunks an renaming them according the what’s in the .dat, but still no love. There’s probably something else that was changed when they were spliced together.

I scoured the web looking for roms with a different format, I did find some ending in .bin. Those didn’t work as is or zipped for me either. If anyone knows how to break these files down correctly into the right sized chunks so that they’ll work, I’m all ears.