[youtube]http://www.youtube.com/watch?v=Qf037pxktPk[/youtube]
How to do this:
Download Google earth [it's free]
Import your gps file from your vario or cell phone.
Set the tail and track characteristics. I use a thick red tail that is a few minutes long.
Use a free screen capture program. {it's all free, don't pay for anything}
Use a video editing software to add music.