content: I bought two of the 633's two years ago and actually fell in love with the machine - despite the TV Guide debacle (blame cable companies on that, not the manufacturers). After a year and a half the first one stopped working. Best I can tell, the Hard Drive just failed. The cost for fixing makes it smarter to buy a new one - so I trashed it. A few months later the second one stopped working altogether also. I absolutely love the machine but there is obviously some problme with the hard drives. I am waiting until pioneer replaces this line (533/633) to buy a better one. Don't know why there is so little to choose from in the industry for this type of product.