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Question: Sony DPFV vs, DPFX 1000

I can see the technical differences between the Sony DPFV 1000/B and the Sony DPFX 1000/B. Resolution is better in the V (1024x600) vs. (800x480)in the B. What does this do to display quality. Also memory is is 2G for the B and omly one for the V. It also appears that the V has an HDMI out and the B does not. Which should a person buy