BootMii nand backup question!
A concern regarding bootmii, I want to make a new nand back up but I want something clarified. I have a back up that i've made from a while ago, now I want to make a new one since things have changed. I want to know if I can go ahead and make a new back up and if boot mii will overwrite the current one one my sd card or should I just move the current one on my sd card to my computer and create a new one, also is the bootmii keys.bin file supposed to be 1kb in size? Thanks for any help! :D