Sorry again, guess I am not being to helpful, did you get a disc with software with the camera - just a thought
the video file may have a name or number followed by an extender .avi is what the older tape camcorders used to save as. The avchd cameras may use .mov or .mts or whatever.
problem is computers & editing software has not kept up with cameras, and windows movie maker has limited import options anyway.
I find this site helpful
http://www.videohelp.com/
Mediacoder - best from
http://www.afterdawn.com/software/au...mediacoder.cfm
(sourceforge seem to have lost it)