I just the other day bought the Magnum P.I. season 1 set, and having problems getting the China Doll episode to play. I get a message that says "unable to read disc". I checked all of the oter episodes in the set, and they work perfectly. I took the set back to wal-mart and got another one and it does exactly the same thing, the first chapter of the "China Doll" episode will not work. Thanks.