An exported AVI file is 5x the size of an imported (from a Sony Digital8 camcorder) AVI file. Why? An exported DV-AVI file is about he same as the imported file, but it is "jerky". Looking at that, frame by frame it goes 3-4 frames with a change in movement, but then no movement for the next frame - so on and so on. These files are a straight import then export. There have been no effects used or any playing around with codecs, etc. I don't expect same file sizes, but 5X!! All are standard NTSC 740x280 4:3 29.97fps. Simply "defaults" in MVP. Any ideas appreciated.