I have been using my gateway playing with multiple roms. I bought 5x 8gb micro SDs especially for this, formatted with Panasonic SD card formatter and obtained the roms from legit sources and wrote them onto the disc with the correct procedures. The game plays fine, but sometimes it will take multiple attempts to launch a game successfully - for example it may freeze at the 3ds logo or come up with an error that tells you to reset with power button. But eventually after a few tries the game will launch (after a few resets, taking the card in and out etc). I noticed that each of the pins on the micro sd card has one fine scratch in the middle of it. Not sure if this is caused by the gateway cartridge or not? And if it will damage the micro SD over time? Has anyone noticed the same?