How to download a video from a site with "built-in" mplayer interface?

Hi guys,

Sorry for my lack of skill in the matter, I hope to make myself understood.
I need to download a video from a Greek website (ok, never mind)...this video:

http://www.ert-archives.gr/wpasV2/p...tleid=7334&action=mStoryBoard&mst=00:00:00:00

(just choose Play from the side icons and you will see the video and size I need).
I know various programs, avaiable here on Majorgeeks too, to grab video from direct links such as youtube, etc. I tried Save2PC but it does not work with this website, and I suspect the problem is the webpage link does not correspond exactly to the video itself, but to the webpage which has the media player interface inside, as you can see. The link, as such, does not change if you click the different icons on the left side.
I tried the website KeepVid and it doesn't work either, as it does not recognize the link as a video.

So, is there a way - any way! It's very important, unfortunately - to download the video in such a situation?
Thanks a lot for any help.
Matteo