Do capture cards result in higher quality SD?

Hi,
Will capture cards allow me to capture much higher quality SD from my miniDV videocamera? If so, is there much of a quality difference and will that quality be lost once I render out from FCP? Can anyone suggest a good capture card that will also work with HDV? Thanks in advance.
Robert

DV cams compress 5:1 and 4:1:1 color space in the cam. In 4:1:1 chroma subsampling, the horizontal color resolution is quartered. The bandwidth is halved compared to no chroma subsampling.
You cannot get around that.
If you use a capture card to transcode, all you are doing is transcoding the original compression and color space to a different codec.
Message was edited by: David S.

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