It sounds like you're looking for help with a digital backup of Resident Evil 4
Avoid if you expect modern visuals or smooth 60 FPS. For a true definitive experience, seek out the PC or 2023 VR version instead.
: A non-canonical mission focused on retrieving "Plaga" samples. Movie Browser
For the purest experience on Xbox hardware, the or Series X/S versions are superior. Microsoft developed a much higher-quality emulator for their backward compatibility program on current-gen consoles, offering 4K upscaling and steadier framerates.
If you are looking into the ISO for archival or emulation purposes, here is what you need to know:
