text: You need to have whatever you're trying to put into windows movie maker in a comaptible file.  I believe this means you need a file with an .avi extension.  \n\nSo, I have a camera that takes video in .avi  \nAfter I've filmed my cat sleeping on the chair, I upload it to the computer through the wire, and then I have an avi file.  I open WMM and import the clip.  Now I can edit the clip of my sleeping cat.