Hi I've searched loads of forums but not been to find a similar problem. I've got an R4 III Upgrade card with a Sandisk 8GB Micro SDHC card. Everything works fine, card, firmware etc. etc. I filled the card to capacity and for some reason a lot of the games towards the end seem to be corrupt/won't start. I've formatted and reinstalled several times now. It's not the games as I've tested 10 games at a time and they all work fine. The card seems to hold 70 - 90 games and they all work fine. The card still has about 3.5gb left but if I add anymore games then they won't work. When I try to start additional games from the menu, they will either just freeze, or I can go into the folder to select the .nds file, but instead of the file being there, there seems to be corrupt writing that looks like some kind of code? I've got another 8gb card and I'm getting the same problem. My friend said to format the card in NTFS instead of FAT, which I've tried but just get the loading screen error as it can't read it. Please can you someone help before I set fire to it!
Formatting must be fat! Try putting the games into different folders, some cards have problems reading roms over a certain number
Most cards will allow you to have your games in seperate folders, i.e brain games, racers, RPG etc right click on the card and make new folder, put 20-30 games in it etc
