This is just a simple method I use and thought it might be beneficial to others who are confused about Rom headers on how to keep your 3DS safe from a Ban. This is not a full proof method as we don't currently know 100% how/why Nintendo is banning people. This is for Gateway users only on the 3DS and hopefully soon the N3DS 1.) Keep all Roms in the .3ds format for games you don't plan to play online. Run these games off of the Gateway Red card like normal 2.) For games you want to play online only use .CIA versions and install them locally on your 3DS (N3DS) 3.) Be safe and have fun Thoughts?