Not all emulators are created equal. Here is the compatibility list:
Another benefit of PBP PSX ROMs is that they can be easily patched and modified, allowing gamers to fix bugs, improve performance, and even add new features to their favorite games. This has led to the creation of thriving communities of gamers and developers who work together to create and share custom patches and mods for PSX games. pbp psx roms
Given the risks, the most ethical and safe method is to buy used PSX discs (often $5–$15 on eBay) and convert them to PBP yourself using PSX2PSP. Not all emulators are created equal
Recommended on disk format for psx roms? · Issue #5067 - GitHub pbp (playstation binary package) Playstation 1 - RetroPie Docs allowing gamers to fix bugs