Currently the share widget will scale the video to match the embedded frame size. It would be better if the aspect ratio of the video was preserved, otherwise the video gets distorted. For example, if you have a widescreen track (16:9 ratio), the video will get stretched vertically when placed in a standard frame (4:3).

The same is true for the slides. For example, if you modified the embed width/height for widescreen aspect (16:9), then when you switch to standard aspect (4:3) slides, they will get stretched horizontally. You can see a good example of this on my blog:
http://steveonjava.com/2010/02/19/hinkmonds-javafx-mobile-dojo/

Ideally:
* The aspect ratio of the video would be preserved, leaving black borders at the edges.
* The aspect ratio of the slides would be preserved, leaving black borders at the edges.
* The generated embed code would match the aspect ratio of the presenter video.