I have a V7 PS2. I got it used and the person that sold it to me said i can play any type of file (ive tested with dvd-rips, real ps2 games, ps1 burned/unburned games, DVD-rs,DVD movies, all seem to work fine when theyre in NTSC).
I dont have to swap cds or anything. however, I do use different boot methods. for dvd-rips i simply reset and i think the same goes for real ps2 games. for burned ps1 games i hav to hold onto the rest button from sleep until the SCEA thing comes up. Also i think the guy said he used 22 or 27 wires (something around that).
Im guessing the modchip might be a messiah 2 maybe. I hope i get to use the harddrive.
Any help appreciated.
EDIT: Oh yea and PS2reality media works perfectly on mine just so you know, ive heard some mods cant support it.