I had 3 samsungs bluerays fail within months first one was exchanged the second one failed and thought it was bad batch so got a refund. Then i purchased 3rd one from different place which failed too.
All had same problem; refused to read microsoft windows or games dvd, whilst playing dvd or blueray resulted in jittery playback, sometimes failed and stopped at random points then refusing to eject the disc until rebooting the pc. Then U flashed to lastest firmware and that didn't help either so returned that one too