Hello. I just installed bootmii as an ios(cause I have a newer wii and will not let me boot2)! I want to back up my wii nand before i mess arond with it. The only sd card I have is only a 128mb card. BUT, have have a 1, 2 and 4 gig usb flash drives. Can i use one of them instead of my sd card to back up my wii?