How to disable DVD auto play upon inserting a disc?

Whenever I put a DVD into my DVD drive, it automatically starts a video player called HP TouchSmart DVD and starts playing the DVD.

How do I stop this from happening all the time? I tried to find a settings option in the video player, but I couldn't find one.

windows 7 :

"Control Panel>Programs>Default Programs>Change AutoPlay setting" go to DVD movie and choose "Take no action" or whatever you want.