Physical discs can get scratched and become unusable.
If you still prefer the Codebreaker interface, you can launch the CBv10.ELF from your memory card or USB using . Updating the Cheat Database : Codebreaker v10.1 supports a file called CHEATS.BIN . codebreaker+v101+ps2+iso
Using a Codebreaker ISO on the emulator is a straightforward process, similar to swapping discs on a real PS2. You will need your Codebreaker ISO (e.g., Codebreaker v10) and the ISO of the game you want to play. Physical discs can get scratched and become unusable