The Auto play applet included in Windows Vista is a useful addition, delivering a sensible way to decide what your PC should do when you insert an audio, video or a game CD/DVD. Click Control Panel, select Hardware and Sound if you're using the category view, then click Auto play to launch it. Now you can set up media player or any other player you want to use that will be launched to play a particular file type. For example you can click on the DVD movie list and select the option Play DVD Movie using Windows Media Player. Auto Play offers many other options and you can choose any one of them do proceed whenever a CD/DVD is inserted in your optical drive. For example if you click the Audio CD list, you'll find Windows Vista can be set up to automatically rip music from an audio CD/DVD as soon as you insert it into the Drive.