: This file was the subject of intense reverse engineering by the early Xbox homebrew and Linux communities (notably the Xbox Linux Project). Because it was "hidden" and hardware-protected, extracting it was a major milestone in bypassing the console's digital signature checks. Verification
The MD5 hash d49c52a4102f6df7bcf8d0617ac475ed specifically identifies the MCPX 1.0 Boot ROM Image md5 mcpx10bin d49c52a4102f6df7bcf8d0617ac475ed top