Mcboot and ESR for PS2

Well, I just bought a new PS2 Console and then I got a Memory card with Mcboot which is used to play non original ps2 games… I have a few games such as god of war 1 and 2, kingdom heats etc… now i want to know how to download and burn new games can anyone help me? I really want to play more final fantasy on my ps2

Please do not request help on using illegal software.
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