Me and my buddies have been wanting to battle each other on Dissidia 012, I have a PSP Go, they have PSPs 1000 and 3000. Problem is, I can never connect with them. I followed literally the same steps they did, and while they can battle each other, I can't battle them. Is it because I'm using a trimmed iso? And if I download a full iso, will I be able to use the same save file? Thanks in advance. Edit: They're also running official UMD versions of the game, while I'm a dirty pirate.