DVDxDV quality

I'm in the process of archiving my family video from miniDV tape to DVD. I would like to be able to create projects such as "family birthdays", etc. using iMovie. It's a lot more convenient for me to grab footage from these archived DVDs using DVDxDV than having to hook up the camcorder and search through a tape and import it.
My question is about the quality of the DV QT clip that is created by DVDxDV. Am I sacrificing significant quality and if so, any suggestions to maximize the quality of the clips?
Power Mac G4 (FW800)   Mac OS X (10.4.4)  

John,
There is a mini review of this application here:
http://www.macworld.com/2004/05/reviews/maymacgems/index.php
It sounds like DVDxDV would be valuable if you do not have access to the original material.
When a DVD is encoded, the original footage is compressed to varying degrees so some quality would be lost when converting it back to DV.
Matt

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