Here is what i found in Help file:
You can save the video and audio files you capture as Windows Media files
with a .wmv file name extension (for video files) or a .wma file name
extension (for audio files, such as a narration). When you save your final
movie, it is saved in Windows Media Format by default.
Still i am not sure can i create AVI files or not.
It seems you know somewhere in help file tells how to create AVI file. Could
you tell me what is the search keyword ?
Thanks,
Ali