okay well im planning on buying one but the only sd card i have is a sandisk 1gb micro sd card. i understand the Super Card Dsone has SDHC compatibility in it. Is this necessary?? is my card fast enough or do i need to purchase an SDHC card? also if i get a bigger sd card later, can i transfer ds save files from card to card? thanks. EDIT- also is this the card that gets the psram error and how common is it?