Originally I was using the WD external drive that came with the DCX-3400 (separate purchase), but the WD External drive "died" about a 1 week ago. It was causing the DCX3400 to not allow me to watch any channels. I lost all my recordings. Still trying not to think about that. A technician swapped out the WD external drive, with a new Iomega 1TB drive. Right now I am reading a book with the TV turned off, and I can hear the Iomega spinning up/down a few, random times. Anyone else notice this? The WD external was a lot quieter. (sp?) Usually it's not a big deal, but since I am a reading book. I expected some quietness.