I am sharing how I save some of the WebEx videos I need.

 

If a dynamic link for a video is clicked, the WebEx player should be fired up.  If you choose 'File' then 'File Info', the actual link to the WebEx file is shown.  Copy the link, paste it to a browser's address box and entry, the download should begin.

 

I couldn't find a way to batch download all WebEx wrf files, it is welcome to be discussed here.