If you only want cheats for backups (ISOs on a hard drive), you do not need Code Breaker at all. Open PS2 Loader (OPL) has a built-in cheat engine that accepts Code Breaker raw codes. You simply download the .CHT or .PCK files (public domain archives) and place them on your HDD. This is 100% free and legal.
Original Code Breaker v7.0 discs are rare and expensive on eBay (often $40-$100 used). The search for a "free" copy is driven by three distinct communities: Code breaker ps2 v7 0 free
Collectors want to relive the experience of inputting infinite health codes without digging out a decade-old Action Replay. Since v7.0 had the most comprehensive code library, they seek an ISO copy to burn to a CD-R (Compact Disc Recordable) and use on a modded PS2 (with a modchip or MechaPwn). If you only want cheats for backups (ISOs
Title: Code Breaker Version 7.0 Platform: PlayStation 2 Developer: Pelican Accessories Category: Cheat Device / Game Enhancement This is 100% free and legal
In the PlayStation 2 modding and cheating community, Version 7.0 is often cited as a "sweet spot" for the software. It avoided some of the compatibility issues found in earlier versions (which struggled with dual-layer DVD games) and did not yet require the always-online connectivity that later gaming generations would mandate. It was a standalone solution that worked seamlessly with the hardware of the time.