I had great hopes for this product, but it absolutely refused to work on my computer (Systemax Dual Core 2GB Windows XP Professional).After much weeping and wailing and gnashing of teeth, I returned it.Some of the many reasons I like buying from Amazon: No-hassle return policy, free return shipping, and a speedy refund of my money.Five stars for Amazon, NO stars for the PVR660 (unfortunately "no stars" is not an option, so it's one star).