I've read you can use chip sizes up to 128 for the sky. I've formatted my 64gb sandisk extreme pro with a 3rd party program so that I can make it fat32 and diskwriter is complaining it's not formatted correctly. I let diskwriter format the chip but then it just loses the drive letter and no partition, so that doesn't work. I read exfat doesn't work on sky3ds either so how do we set up chips so that diskwriter can use it?