[Zyonin]

OK folks, on WoWInterface we are polite and respectful to each other. If you choose to use "choice" words and flame each other, then you will receive a "vacation" from our site. You have been warned.

Now to answer the question. The CD tracker (and the entire UI) is a special UI used for Arena tournaments such as the ones put on by Blizzard and/or MLG. To the best of my knowledge, it's not downloadable by players as it's meant for a "spectator mode" (if you watch the video you will notice that the UI will focus on specific players, then move on to another player). It's not designed for any kind of combat use.