Okay so I downloaded Pokemon Blue (legally yes <_< because I own it in rl, the rules of roms) and I got about half way through it, then didn't play it for a couple of days. I have just now tried to play it again and when I try to open the rom it doesn't recognize it . I do NOT want to start the game over again ..
for the record, it's still illegal as there are different versions and revisions of pretty much every game it has to be the exact same one believe it or not. it's a gay law.