Windows 8.1 features a disc recognition system so when you insert a CD or DVD with specific content, it will automatically provide the necessary app recommendations to play it. Simply insert the CD or DVD into the drive and let Windows do the rest. It will play the files if they're audio or start a video playback in case they're video files. Same thing applies to other files. In case there is no associated application to open a certain file type, it will provide online ways to acquire the right software. The only requirement is that the computer needs to be connected to the Internet.