[ALUG] CD Audio Autoplay

Not being that used to Gnome I am hoping that someone can help me with this small problem. I am currently ripping my entire CD collection to store on a little Media Server I have built myself. I am using Grip which is fine. However every time I insert an Audio CD Gnome launches a player and starts playing it. I then have to stop this before I can rip the contents. How do I disable this behaviour ?