I had an R4DS and now I have an AceKard 2. I put the games and save files in the game folder but the saves are not recognized. I tried renaming them (adidng .nds before .sav) and it just refreezes when trying to load the game.
VatoLoco said:xxx.nds.sav(all lowercase), not .SAV
I successfully switched all my R4 saves to AK2 just by renaming them.