Hi .. need some help with the memory card I bought.. I got a samsung evo 32g and a samsung evo 64g memory card for the gateway. the 32 for the red card and the 64 for the cia files. the problem is the 32 g goes fine with the 3ds but when I put in the 64g the 3ds saids that it can't read it.. So I tried to format it but the 64g only has exFAT and NTFS Do I have to buy another card? or can I use it?