I have posted on here about my 360.. Here is the problem.. My 360 is an MS 25.. The guy said it was after he said it was an ms 28. Originally was flashed with Xtreme 5.2b, after about two weeks with this mod games were giving me the dirty disc errors expecially with original games. Backup and orginals were also playing very loudly as if they were being scratched. I went back and had it remodded with Xtreme 5.2c... the backups are playing better but having some problems, but my original games are still giving me the dirty disk error or this disc is unrecognized.. I have even had to play this game put it in an xbox 360 console. My question is if any of these Xtreme 5.2 or any of these mods are doing to let me play my originals. I'm considering being refunded because I want my 70 dollar original games to work.. I need help please.