I've checked and can't find any info on this. If this is right under my nose and I missed it sorry for the inconvience. I checked the guides for this too but couldn't find anything. I just got my 1GB SD Card, M3, and Passcard 30 minutes ago. I put the SD Card in after installing the Game Manager, and the computer can read the SD. It even says it has all the space free, but when I try and put a DS ROM on there, it says "Disk Full." Is there something I'm missing here? If I need to format it, how?