text: windows movie maker? does anyone know anything about windows movie maker? i cannot figure out how to input a video device. i want to put certain parts of a dvd on it and then mix music in the background. anyone have any ideas? 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.    so, i have a camera that takes video in .avi   after 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.