Hmm, I was wanting it to be boot-able from the same disc that the game is on but I didn't bother adding Codebreaker V3 to the .bin and changing load orders because the program is an .exe unlike Codebreaker V9 for PS2 games being an .elf file.
Plus that was all explained in a tutorial for how to prioritize uLE on-disc to allow PS2 Codebreaker to be ran first so that you can set codes first, then navigate back through uLE and boot the game from cdfs.
Codebreaker V9 trick was 2 .ELFs & 1 .CNF
Codebreaker V3 is .EXE, .DATs, folders, mess.
Or, being able to apply a few 12-digit CB/GS codes from .txt into the .bin from "mc?" while the disc was spinning up would be effective enough if possible?
I dont use OPL to play from USB and i notice that the way cheats for games on PS2 has developed is more-oriented at simplifying the process for USB gamers
But it is no big deal, maybe im just not aware of some .elf app for PS2 that will allow me to set GS codes for PS1 games and then be able to boot my forspoken disc copy afterwards.