I have a DirecTV HD-DVR (an HR-10). It is getting full, and I'm wondering if i can back it up somehow. I see a USB port as well as a SATA port. I plugged in a USB hard drive, but the HD-DVR didn't seem to recognize it. Can I use a SATA hard drive? And if so, do I need to do anything to get the unit to 'recognize' it, or will it do so automatically?
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