I dumped a game into 3 parts, each of which I copied to one of two SD cards. I copied part 1 and part 3 just fine but every time I try and copy part 2 I get 'cannot copy RM3E: the device is not ready'. It happens at random times during the copy, sometimes with only like 30-40 seconds left. I'm not doing anything differently and I've tried disconnecting the SD card as well as the card reader but no luck. I'm running windows XP Service Pack 3 if that helps. Anyone else run into this problem or have an idea as to what causes it?