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There is also a product called Moviebox DV which is similar to the moviebox USB but connects to the PC by firewire. It retains all the functions of the USB but has the advantage of firewire connectivity which is perfect for videocapture. The moviebox is a lot more versatile than the Pci( av/dv) card. It costs a little bit more and requires an external power supply but doesnt involve opening up your pc and can be used for a laptop or other PC as well (if needed).
USB2 theoretically has greater data thru put than firewire and it is used in Liquid Editions Pro breakout box (BOB) with good effect BUT in general , in practice , usb is inferior to firewire and certainly to a direct pci connection as you would have with AV/DV card.The issue with usb is that firewire has a better sustained data transfer which video capture thrives on
There are several older threads on USB vs Firewire. If you have a choice stick with firewire, and if you can find it the MOVIEBOX DV is a nicer piece of kit than the PCI card.
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