Is your DVD drive's tray still functioning(opens,closes)? When you insert an audio or video cd does your dvd drive blinks(green) while it reads the cd?Check your device manager. Go to Start, Control Panel, Click on System, Click Hardware, then Device Manager. Click on the + sign beside DVD/CD ROM drives. It will show you your current dvd drive. Check if there's any red or yellow mark on icons. Right-click on your dvd drive to show certain information/options: Update, Disable, Uninstall, Scan for Hardware Changes and Properties. Click on Properties to see the status of your drive(General Menu:This device is working properly. ).