This program lets you choose and flash gameboots to your flash0 while going through safety checks and flashing it the safest possible way so you lower your chance of a brick by doing it manually.

Quote:

fixed an extraction error some people were having
added a small speedup to the program
added new security checks
added a new opening animation

http://forums.qj.net/psp-development-forum/151478-release-gameboot-editor-v3-1-a.html