I have The Legend of Zelda Four swords adventures. I extracted the .gcm files and it looks like this. Do i rename only one of them to .iso and that is the game or do I have to do something with all of them?
That screenshot is all sorts of wrong too, if you have volume files; you just need to extract once. The screenshot makes it look like you unnecessarily extracted three times. Additionally you can remove the disc data from the iso and save some space, after all FSA is not even 500MB iirc
I asume your using dios mios correct? then when you select the game you want go to the options menu on the bottom left then look though the options you should see video mode i think, change it to Force PAL OR Force NTSC.