I got a gcm file (downloaded) and I tried to burn it after renaming it to .iso, and again later to .bin. Neither worked. Dolwin read it in as valid, so I know it's not a bad rip. Does anyone know what to do here? It seems like some form of compression or something.
That probably means, the dvd media you are using is incompatable, or you are burning it at too fast of a speed.
1) Actually, it could not be read in at all, not even in Isobuster. 2) Anyway, I found that it had to be ripped with a special app. GCM-Tool does the trick, for reference.