Things You'll Need
Instructions
Download the PS3-compatible NES emulator of your choice to your computer. Extract the emulator files onto a blank USB drive. A folder named "AVCHD" will be created. Move the backup copies of your NES games to this folder.
Plug the USB drive into your PS3. Use the normal controller to navigate to the Video menu. Select your USB drive from the list of media sources. Play "AVCHD."
Select the game you wish to play from the menu provided. Turn off your controller once it loads. Plug your NES controller into the USB adapter. Plug the adapter into the PS3. The PS3 may take a moment to detect the controller.