I have yet to have any issues with my 360, although mine wasnt one of the first gen ones either. Only problem I have had was over the weekend I was playing my brand new Madden '09 game and the disc half way into a game said "Can not read disc, clean disc, etc, etc) and I took it out put it back in then it wouldnt even try and load, so I took it back to Game Stop for a new one, and its fine.