Here's an example of the image gallery that I'm using:

I'm wondering if it's possible to make it work so that when you click a thumbnail, a video will play instead of just showing a still image. Maybe it can be combined with something like the "How to make a video select list" section of this page (but with thumbnails rather than text links, obviously):

It doesn't need to be Youtube embedded videos; it can be anything (like MC Media Player, for example).

Thanks for any help.