PCECD softlist was made to load the cart in automatic when specifying the CD-ROM. Funny thing is it doesn't work at all.
Code:
mame64.exe pce -cdrom draculax
Loads game and cartridge, but game doesn't run.
Code:
mame64.exe pce -cart scdsys -cdrom draculax
Loads game and cartridge, then executes the game.
And now that we are talking about bugs I found another:
Code:
mame64.exe genesis -cart1 sk -cart2 sonic2u
For this I used a cartridge that it doesn't exist ("sonic2u"). While something like this would return an error on -cart1, when it comes to -cart2 it proceeds to report it and executes the emulator anyway crashing in the process.