It would be cool as people get this set this coming week if they could report what machines they are playing the discs on and if they have any playback issues. That way we might see if there are any patterns to playback problems. I'm really concerned after The Twilight Zone set is having issues with playback for a lot of people. That release I'm sure has not sold as many as this Alien set will. So we might be seeing a lot more responses to playback issues, if any. I hope it's not indicative of a new problem of recent new Blu Rays because of how they are encoded or authored or however they do what they do.