Actually the last guy was partly wrong. The 8500DV has "hardware assisted" encoding, which means that the onboard encoder does some of the work and leaves the rest up to the CPU. This is far more efficient than pure software encoding and far cheaper than pure hardware encoding. I certainly don't think the AIW9700 would be a step backwards from that.
<font color=blue>You're posting in a forum with class. It may be third class, but it's still class!</font color=blue>