Emulator Problem: Games won't work in any nds emulator

In multiple emulators I have tried to load megaman ZX, Metroid prime hunters, and Mario 64 DS, and only in the No$GBA did i recieve the following message: "The data could not be read. Please turn the power off and reinsert the Game Card." In all other emulators i tried (DeSmuME, iDeas, etc.) the emulator crashed. I downloaded the roms again from different sites and get the same message, but only on the No$gba. Do I need a battery file or something so I can play?

Use the search button. It had been asked before and I explained it to some people like you before.

i couldn't find it in the search, but i figured it out. I had to set the emulator with DS backup memory. thx anyway.

Yes, exactly.

You cannot find it in the search ? Really ? Here is what I found:

http://forums.emulator-zone.com/showthread.php?t=12833