I have just got a Philips 3570 DVDR. When it works - its good, but on playing back hard drive recordings, it keeps freezing for a couple of seconds, then continuing (picture freezes - 2 or 3 seconds lost sound) right through the playback. It drives me mad. I got rid of the previous model because it did the same thing. I'm beginning to think all DVD recorders are like this. Is this normal? Is there any thing I can do to fix it? Should I drop it out the window ????