I just modded my v4 PS2 with a Messiah 2 and My original copy of GTA: Vice City boots 2 out of 10 times. But if I put the M2 into PS1/DVD mode it always boots. Other DVDs and CDs/CD-R's work fine. I haven't tried a DVD-R because I dont have access to one ( ). I've cleaned the lens and redid all the soldering. I have searched the forums and charlie's guides to no avail. Any ideas are welcome.