What do you mean "Fails"? Do you mean you click on it and it doesn't play? Can the person download it to tehir local harddrive and run it there OK? If so, then the problem is with the Webserver. The Webmaster needs to set the proper MIME type for the .MOV (or whatever) extension. If they don't set a mime handler in the server, your browser won't handle it properly and may return an error or simply download the file (defaulting to application/octect stream for a MIME type). I THINK the proper mime type is: Extenstion: .MOV, .QT MIME TYPE: video / quicktime That should fix it.