A while ago I imported some of my dad's MiniDVs to my computer using a software that I can't recall. It imported them as mpg files at a file size of about 2.5GB/hour of video. I now have more DVs I want to import and started using Scenalyzer and the .avi format. I'm getting a file size of about 13GB/hour of video. I know nothing about video formats but the .avi is a lot bigger. Visually, I don't see much of a difference on my computer monitor between the two formats so my question is, is .avi and its larger file size better? Does the .mpg file have some quality loss? I'd like to figure out whether I should continue importing with the .avi or find another program to import (I don't see the .mpg format under the Sceanlyzer import options).