You can convert the ISO into a format readable by Open PS2 Loader (OPL) and boot it directly from a network drive or a hard drive (on fat PS2 models).
Version 3.34 represented a peak in compatibility during the transition from the original "Fat" PS2 to the "Slim" models. Sony frequently released new hardware revisions specifically to block unofficial discs; version updates like 3.34 were essential "counter-moves" to ensure the software would still boot on newer consoles. The "ISO" and ROM Legacy Action Replay MAX - Version 3.34 ROM -ISO- Down...
If you own a memory card, you can run “Day 1” cheat device ELF files directly from USB or HDD – no disc required. You can convert the ISO into a format
Disclaimer: Ensure you possess the necessary permissions to download and use disc images in your region. The "ISO" and ROM Legacy If you own