Always verify the checksum of the file you find. A legitimate MCPX v1.1 boot ROM should have an MD5 hash of: d49c325883582ca7363406f477696203 . How to Use the Image in Emulators
Once generated by the homebrew software, navigate to your Xbox's virtual drive via FTP (usually under a backup folder on the C: or E: drive). Download the mcpx.bin file to your PC. Verifying Your MCPX Dump Download Mcpx Boot Rom Image
Download the 512-byte .bin file to your computer. Verifying Your File Always verify the checksum of the file you find
To obtain the image legally, you must dump it directly from your own physical original Xbox console. How to Dump the Boot ROM Download the mcpx
The is a tiny piece of code (512 bytes) inside the original Xbox's southbridge that starts the system. Because it is copyrighted Microsoft code, you won't find it on official sites like the xemu documentation .