I am out of town so I am not sure which DVD it was last week(I think it was a Sony), but one last week and Monster House this week (A Sony release) will not play in my nice upconverting DVD player. My wife told me that she pulled out a cheap $30 player to connect composite to my bigscreen to play the movies, because they WILL NOT play on my good player. I am sick and tired of downloading patches for a stand alone player because of Sony's copy protection.