I think so! I'm wondering now if it's in one of my DSL's, my grandma took 3 of the from me but she gave me one back today, no cartridge inside though.. hopefully she will give me back the others and the card will be in there!
Ooo okay!! I will have to try doing that then x) I'm excited haha!
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I currently have no clue whatsoever where my R4DS card is at the moment though :( I had it in my game carrier but I have no clue where it went! All of a sudden it was just gone.
@Xdqwerty, You do realise that just about any SD card formatted to FAT32 should work with the DSi. I think, 16GB or 32 is about enough to load all of your games.