I don't understand the instructions I've seen for this. It says you need 2 microSD cards that are 2gb+ size. I don't care about playing DS games on my 3DS, I've got a DS for that, so can I not run the Wood exploit on a 1GB microSD card, and keep an 8GB for 3DS games only? Also, just to make sure I've got it right so I don't mess it up. The instructions are: 1. Run the Wood exploit with Grey/Blue card and copy something. 2. Put Launcher.dat on SD card and click DS profile in settings 3. Then you can "write" a ROM on to another microSD card in order to run one 3DS game from the White/Gold card? At what point can you back up the NAND and/or setup the emuNAND?? And is the white card basically useless without using the grey card first?