Games like Final Fantasy VII or Castlevania: Symphony of the Night stream CD audio and sound effects through BIOS routines. Without the correct BIOS, audio may stutter, loop incorrectly, or fail to play.
If you want, I can:
Using the PSX SCPH5501.BIN is relatively straightforward. Here's a step-by-step guide on how to use the file: psx scph5501.bin
Like all proprietary console software, the SCPH5501.bin file is protected by copyright law. It remains the intellectual property of Sony Interactive Entertainment. Games like Final Fantasy VII or Castlevania: Symphony