Hi all, I made a topic not long ago and got a usefull advice that i should format my MicroSd with Panasonic Sd Formater. Must say the menu and games selection is going way faster.. but when i put more then 4 games on the sd card, save's will still get corrupted. Getting very sad on this r4 now i only got Final Fantasy Chocobo and Mario and Luigi inside story on the sd, and today when i turned on my DS i got again on Mario and luigi game Corrupted save needs to be deleted.. Played yesterday whole night lol and save is gone yay! Any idea? for not i just put my Micro sd card in my laptop when i turn off my ds to be sure but this no way of doing all the time. Well hope anyone knows a solution because i ran out of idea's Update : This is what i get when i turn off my Ds and turn on the Ds again and run mario and luigi inside story Greetings, DragonAqua EDIT : SOLVED! Problem was the MicroSd card i used i replaced my Kingston 4gb Class4 With a Sandisk 8gb Class4. and remember to Format your MicroSd card with Panasonic Sd Formater 2.0.