I'm using an HP laptop with Windows Vista, whenever I insert a DVD the program QuickPlay opens up. I can't find a way to stop it.
I had the same problem. Just hit the start button or the windows button next to the "alt" button on the left and type in "Autoplay". Windows will search for this and when it comes up in the menu under programs, click on it. Then a new window will open where you can change the settings. On my computer is it the 3rd one down. It says "DVD movie". Just click the drop down menu next to it and change it to whatever you want. I change it to "Take no action". I hope this helps.