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Be careful with these devices as I have had problems with a PCI card which used my CPU for processing the video stream. When I switched to a dual tuner HDTV card that did all the work on the board via hardware, the problems with dropped frames and audio/video sync, freezing, etc all vanished.
Now, I can be recording one station in HD whilst watching another in a window whilst browsing IIS.
So, if there is a choice, pick the unit that does the entire grunt work in HW, and not SW which hammers your CPU and other resources.
Cheers
Dennis
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