I bought the 2nd season on DVD and as you know the discs are double-sided. On ALL 3 discs when I get to the middle of the dvd at about 1:30:00 - 2:00:00 time my dvd player freezes and refuses to play the discs! The discs are COMPLETELY clean and without any scratch! Has anyone else encountered this problem? p.s. I have the SONY DVP-NS585P DVD player p.s.2. the discs play OK on the PC..