Launching "scuda" or "scudj" loads "scud"

[Ganondorf]

In my Supermodel folder, I have the ROMs of SCUD Race Australia ("scud"), SCUD Race Export ("scuda") and SCUD Race Japan ("scudj"). However, while trying to load either "scuda" or "scudj", it simply loads "scud". After closing the emulator, I find that the command line states "Multiple games found in scud.zip. Launching SCUD Race (Australia)."

It seems as though (for whatever reason) launching "scuda" or "scudj" causes the emulator to load "scud". Is it possible to load the Export or Japanese ROMs with the Australian ROM in the folder? Or maybe I'm just being dense and I've messed up my "scud" ROM somehow.

[Bart]

See the docs on merging ROMs. You need to remove files with identical IC numbers that aren't needed.

[raidendx]

To get Scud Plus working, launch scudp via cmd line and you will see the missing files.
Then extract scud.zip and add the missing files from scud.zip extracted folder into the scudp.zip zip file.
Then launch scudp - if you missed a file it will show up verbously.

With Scud Race Plus if you hold "1" down it will show the tracks in reverse but on both systems I have there seems to be a problem as the track layout is black and no textures are present.
The beginner "room" track works.