I'm new at this so...
If I were to put a japanese game into an R4 card(the DSi one) for the (american)DSi, the game would not run, would it?
I looked around a few threads and it says the R4 is not so good? Which would be the best card to get?
Theres also stuff about firmware and that one card does the updates for you?
I personally do not own a DSi as of yet. I should have my new one in by next week however. I have used a legit R4 for the DS Lite, but now for the DSi, after researching, I recently ordered an Acekard 2i for when I get my DSi.
Whether that is better or not, I am not sure, but from reviews and different things I have read/researched it is the card of choice for me.
And as far as Micro SDs go, SanDisk should be fine. I use Transcend, but SanDisk should be fine, so long as it works, it should be good hah.