DVD+R's also work. I burned Pikmin 2 on a Memorex Mini-R (yes it was a S3) and it didn't work BUT I burned Pikmin 2 again on a RiData Full DVD+R (Disc ID: RICOHJPN-R01-02, Book Type: DVD+R, Disc Size: 120mm) and it worked flawlessly. I also did Metroid Prime 2 (ripped from my orig copy) onto a memorex mini+r and it worked just fine. I did the laser tweak. Try your +R stack...iv'e had better luck.
