Free MC Boot is an ‘exploit’ that allows a user to install it on official 8MB Sony MC’s as well as 3rd party cards. (with the exception of those needing a boot disc to be recognized or cloned Chinese cards).

Changes:

– Updated DVDELF Inject to 1.3R1 by Neme
– Custom elf file inject has been disabled (but now you can use the 75kb DVDELF)
– Added light loader to support 75kb dvdelf.
– Boot elfs can be differents if you press a button.

http://psx-scene.com/forums/freevast/58292-official-free-mc-boot-releases.html