Swap Magic?

hello,I have swap magic 3.6 plus and I am trying to boot a custom burned iso (a bios dumper) so I can copy my bios from my ps2 and use PCSX2, how do I do this(I have put the disc in and it says its not a valid ps2 disc, what am I doing wrong)?
Thank you.

You should try making an exploit and using dumpbios-mass.elf, that's what I use!!

how do I do that?