Hello,

The romdump sets correspond to the following cartridges:

Set-1 (mephisto3): Cartridge containing 2 EPROM with labels '101' and '201'
Set-2 (mephisto3a): Cartridge containing 2 EPROM with labels '107' and '207'
Set-3 (mephisto3b): Cartridge containing 2 EPROM with labels '109' and '209'
Set-4 (mephisto3c): Cartridge containing 1 EPROM with label G81

This designation is temporary because we could find more versions in the future.

Best,
Gerardo