I just installed a chipmod Pro mod chip into a new version15 PS2, and I've been trying to backup about 7 games, and so far I've made over 20 coasters, without one single game working. It always gets just past the Playstation2 logo and than the disk just keeps spinning and spinning. I know the chip works, cause I never get a red screen or disk read error, and all of my backups that I have made about a year ago work and load perfectly fine. I have tried verbatim, and nexxtech DVD-R. I checked with DVD Identifier, and it turns out that both are made by Mitsubishi Chemical Corp, and both of them have the same manufacturer ID ( MCC 03RG20) and according to this website, they are supposed to be first class media. IS it possible that my PS2 can't read certain types of media?, considering all the games that do work that I have made a long time ago where on different media. I've tried every guide I found on here for copying the games, and nothing works, even tryied rebuilding the games. Oh yeah, and the disks I couldn't get to work on this PS2 work fine on my friends PS2 and he has a version7 with a chip mod H20 mod chip in it.