GitHub repositories titled original-xbox-firmware or mcpx-dumps often list this hash in their README.md or checksums.txt to help users validate their legally dumped files (though distributing the actual binary is legally gray).
Common Use Case: Users of Batocera.linux often need this file placed in the bios/ directory to enable Xbox emulation. Md5 -mcpx 1.0.bin- D49c52a4102f6df7bcf8d0617ac475ed
Are you setting this up for a specific emulator like xemu, or are you looking into the technical history of Xbox security? Understanding MD5 Hashes