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I've got the .iso file for "Silent Hill: Origins" but I can't seem to find the bios on it. What I DO have are the files IGC.ARC and SH.ARC and a bunch of .IRX files, among others. I assume .ARC is an archive file but I could be wrong. Basically, how can I find the bios or otherwise run the game?

Any help is much appreciated, and I apologise if the answer is obvious or simple.

The bios isn't on the disc, it's in your ps2.