with a new RS-MMC, i formatted in FAT, downloaded the software (didn't use the cd one), installed, run the software, selected the card letter in Options, made Add and added some .gba and .nds
the gba opens fine (i don't press START, i select them and press A, they open anyway )
the nds don't open
one detail i've noticed is when i open a .gba it appers on screen loading the screen until the total (8mb for example, 500kb... 1000kb... 1250kb... and on) and opens the game
when i open a .nds it doesn't appears loading the total...