Hi... I have a Sony DVP S725D player.. for the last few weeks now and again while watching films the pictures have pixalated a little, sometimes it clears sometimes it freezes, sometimes it jumps back a few chapters. has happened on quite a few discs that have always played ok. But then I have played the fil again and it has played fine. From happening now and again it seems to happen more often now, have just run a DVD cleaner through and it played ok, but have just had a disc skip back a few chapters again. Does it sound like a cleaning problem? can a shop clean it better than a disc cleaner?? any help or advise would be very welcome.