@einklinker and now you give here information that you didn’t mentioned before. The software you are using to tranfer roms is causing the issue. That’s all you need to know. Do not open threads in different languages and wait in one for replies.
Sorry for upping this topic again but in REcalbox 6.1.1 I'm having an error message stating that it's an issue with the bios... no playstation bios file found add for better recalbox . However I have the right bioses with right checksums. Any clue if is this a bug?