The scph7003.bin BIOS image is the same as scph5501.bin, but will need. I am quite familiar with retroarch, I am aware of having to download the 'pcsx rearmed' core and then import my psx roms, and then everything is ok. Now, I have read something about the 'BIOS' files, and insert them for more compatibility, I have seen that there are several types.ġ) Do I have to manually add all the BIOS files for pcsx reamerd?Ģ) If so, should I add ALL the '.bins' or just some?ģ) In which directory should I add the '.bin' files exactly?Ĥ) Should I rename the BIOS '.bin' files to uppercase and lowercase or does it make a difference? This can be done in the menu at Settings > Drivers > Video Driver. I kindly ask for some detailed explanation about it, as before asking questions here I have searched assiduously on google, youtube and various forums for a tutorial relating to this but I have not found anything useful and exhaustive.