This is probably nothing, but i got told there was a modified loader for R4 which had the option to put a password on the loader before you could access the files. I can't seem to find it so i have the feeling it doesn't exist, but does anyone know anything about it? How hard would it be to make? Obviously you can still access everything off the SD, but i'd find it useful just to stop annoying siblings trying to use my DS. Any help?