Hey. I tried to play a burnt copy of super mario galaxy 2 via neogamma today. When i did, usually as it loads the disc ID comes up in the last line (usualy something like R73L0, or somethinglike that). this time however, it came up with "@ " and then the screeen went black, followed by Exception (dsi) occured, followed by a shgitload of code. All my other backups work fine, any ideas what could be causing this?????