A repo that holds the PCSX2 .bats for compressiong roms (It can be used for PSX, PSP and Sega Dreamcast Games) They are from here but for ease of use, I wanna also hold them here
If you used OPL-Manager to dump yourgames, and then you used OmniROM to compress them, It can have issues, the first one being that you can go from .chd-.cso in most cases, I tried and no luck for my usecase