Western Digital My Book Premium 500GB USB/FW 400 Ext Hard Drive
A Nightmare!
I have had two of these crash in one week, losing all my data. The drive seems to freeze when it warms up.  While Western Digital's support quickly replaces the drives (with remanufactured drives) they are not helpful at all with fixing your existing drive. It's very disconcerting to hear them say \\"Yep, it's no good. Go ahead and reformat.\\"  I have had a Maxon external for two years without any problems. I will not be buying another Western Digital.