When reading the DSi manual I got when preordering it today, I stumbled upon this litte section handling SD card errors and it said: 'It's not possible to copy anything to your SD card if it already contains more than 300 blocks of software.' (roughly translated) Since I was wondering which size of SD card to get I would like to know what the actual block size of a card formatted for use with the DSi is. In one of those other DSi related topics I picked up the maximum size the DSi could handle would be 16GB. Is this true and would 16GB be equal to 300 blocks? P.S. Sorry if the answer is obvious - I searched but couldn't find anything.