Silent Hill 1 ROM cracking at church in RetroArch

I tried playing Silent Hill 1 in Retroarch. It was doing so well, and (since Imgburn doesn't work on my system and the alternative I tried somehow cracked my computer) the perfect choice for me. However, when I got to the Balkan church, it started to glitch out and stop working!

I think the ROM might be corrupted, and since the built-in disc burner doesn't work, I'm boned!