Thanks for the input. It led me to this site; http://www.2mcctv.com/blog/2012_05_09-h-264-compression-dvr-mjpeg-mpeg4/ where I found H.264 uses much less HDD space than MPEG-4. Perhaps the Motorola QIP-7232-2 uses H.264 for its internal HDD, and uses MPEG-4 for external drive storage. The MPEG-4 supports the licensing I'm sure Verizon wants and a quality image capacity. However, the answer to the question of what formats does the Motorola QIP-7232-2 use to store video programming on its internal HDD and onto an external drive hasn't been anwered.
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