Jay,

Don't worry about converting. You should be running Zone Alarm Pro on your
computer anyway or an equivalent that tells you when any program is trying
to communicate with the outside world. If you run a clip and don't get an
alert, it's free of web links.

The wmv files are much better for viewers due to the smaller size. I can't
imagine anyone would bother putting a virus into an aviation clip. They
would go with something with wider appeal like cheerleaders ....(never
mind).
--
Roger Long