I have a 625 receiver. I record everything I watch. So therefore I put a lot of wear and tear on it. I have had this 625 for about 3 years. That is much recording. The problem I am having is the recorded programs sometimes will freeze, The picture will stay but the voice continues as if everything is ok. Another problem is the picture will get all full of pixels and skip. Fade out but after a while will return ok. Something like rain fade. But it is not rain fade. Sometimes the recording will skip ahead. Not far but a few words. There are other problems but I think you can get the picture of what is happening . Wondering if the hard drive is going bad and the receiver needs replaced . Also wondering if like a computer that acts up that a defrag will fix the problem sometimes. So if I watch all the programs and do a clean disk will this fix the problems? If you guys think that will work how would I do it?. Looked at menu and found no such fix. Your advice is much needed for I know a bunch of you all are smarter than I. Thanks