I've been trying to play Club Penguin Elite Penguin Force and Herberts revenge using .nds files which work perfect on Android's DraStic DS emulator. However, when I try to load them on DeSmuMe, it says the save data could not be accessed, please turn the power off and reinsert the Game Card.
Is this because they need a .sav file perhaps?
Thanks in advance
They work fine. Stop using old versions of desmume, broken versions of desmume, cheats, or broken roms.
I'm using 0.9.11 without cheats.