Hey all. So I keep getting that message when trying to load a game. I have an EZ Flash IV cartridge using a 4 GB micro SD card. I have the SD card formatted to FAT with I think 64 kb segments. I'm using EZ 4 Client 1.03 to transfer files on the card. I have my GBA flashed with some [SD] 1.770 file that was given on this site which is really quite nice looking. My cartridge works just fine if I have just have a few games on it. If I go even a little crazy though, and try to put like 20 games on this, I continue to get that error. I trim all of the roms with NDSTokyoTrim3. I'm using Windows 7. Can someone give me a clue on what I'm doing wrong here? I think I have followed all of the steps but it's not working for some reason. Again, the cartridge is great if I have only a few things on it. Anything more and I'm getting constant errors. Cheers.