The USB is disabled by DirecTV in DirecTivo's. Different from SA (stand alone) series 2's. The Home Media option is not available to DirecTivo owners. More hacking is required to first enable the USB ports, and then get the ethernet working. It is easier with a SA series 2.
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-Michael

#040103696 on a shelf
Mk2a - 90 GB - Red - Illuminated buttons