I recently had my ps2 modded with a ripper 2 deluxe gold modchip. So I thought now let's play some backups. I use a nec3500 with Datawrite 8speed dvd-r I started with narutimett hero2 and Gta san andreas(burned with alcohol 120% at 4 speed), there whas nothing wrong I can play them without any problem. So I tried 3 other games Driv3r Toca race driver 2 and DBZ budokai 3, my ps2 couldn't boot them so i thought lets try another burning program. I downloaded dvd decrypter and burned them again(this time at 2 speed), but it still didn't work. My question is how come I can't play these games?( The modchip seems to be working okay since I can play Naruto and San andreas).