es_systems.cfg uses "Mega CD" instead of "Sega CD"
EmulationStation uses the Sega CD logo, and displays the American boxart for most games (which say "Sega CD"), but the config file titles it "Mega CD".
I believe this is a theme issue.
I know this posting was suuuuper old, but if you have a screenshot please let me see what you mean on your PC.
Sadly I don't have a good example on hand; the problem occurs here:
https://github.com/Flerp/RetroCake/blob/d1bdb7ba5a2017d00b7968066c90d33f8b319d47/RetroCake.bat#L1118
The issue is just that the <fullname>Mega CD</fullname> is inconsistent with the <theme>segacd</theme> and other properties. The GUI text will say "Mega CD" but will display the logo for the Sega CD, and use roms in the SegaCD folder.
This could be fixed just by changing fullname to "Sega CD" whenever this system is declared. It's a minor gripe and I don't exactly remember why I thought it was important enough to file an issue for.