I'm pretty sure it is case sensitive as it didn't work for me until I made it "vMac.ROM" exactly.
By the way, I made a video of it running here if anyone wants to see it in action. It runs at full speed with no issues on my N3DS.
By the way, I made a video of it running here if anyone wants to see it in action. It runs at full speed with no issues on my N3DS.