There are programs that can find the MD5 sum of your iso. then just google the game and "md5 hash sum" and you should find the proper one to compare against
I've played a lot of Path of Radiance on dolphin with zero crashes (except when I'm attempting to crash it.)
The game is one of the dualcore unstable games, but honestly I don't know what else could be happening. Hopefully it is a bad ISO and nothing worse.