I am delighted with my Panasonic E55 but an odd thing happened last night when playing a commercial DVD ( a newly purchased Hitchcock DVD to be precise). At 1 hour 40 minutes into the film it froze making a number of clanking type noises. I was unable to fast forward, stop etc. I was able to use OPEN so I cleaned the DVD and fast forwarded to the same bit of the DVD. The same thing happened. I then tried the DVD on our other DVD player, a humble Pacific from ASDA. It played just fine. Any thoughts for this odd behaviour?