Note: you can extract the file from the .GCD using RGN_tool. It makes a file called external_data.bin (named by RGN_Tool, aka me ). It is absolutely of no interest, but I just wanted to let you know. It seems to install the .bin in Region 0x01. I wounder if ddabcd277 can read this region with his service cable. It would be interesting to see if the file is just copied there.