I can't get yugioh stardust accelerator to work

I've tried the european and japanese version, and neither will work. I'm running DESmuME on a macbook; and I can get past the language selection and character name etc, but when I attempt to start the actual game, the error message: "Unable to write data. Please turn off the power and reinsert the Game Card," pops up.
If anyone could help, that'd be really great.

DESmuME isn't a particularly good emulator. It's probably a compatibility issue

Yeah, I'm aware of that; however, I don't know of any other emulators available for mac.

Haven't heard of any else sorry :(

I have a problem with both this game also in that when I select the game on my R4 the screen goes black. I have used dslazy to replace arm 7 and would be grateful for any advice on what else can be done.

no$gba 2.6 is the best one to use man, the memmory crashes on me if i don't do anything and leave it running but its the best