Batocera shows missing Bios Scph7003.bin for PSX?
but MD5 is OK on PC
possibly a case issue. i guess you used a usb key in fat/ntfs
no, a micro SD Card, test with pi1, pi3 and xu4
for the bios files psx, the large and lower case is important
i change the name to: SCPH1000.BIN / SCPH1001.BIN / SCPH7003.BIN
now batocera shows no missing bios
rename all to UPPERCASE
Remember, linux is case sensitive: xxxx.BIN is diferent from xxxx.bin...