Microsoft may have inadvertently made a good case for embracing movie downloads and streams. The company has released an official DVD Player app that lets you play old-school disc-based movies in Windows 10. Sounds convenient, right? It is, but there's one big problem: it's $15. Yes, if you got your Windows 10 upgrade for free, it'll cost you more to play that dusty copy of Armageddon in DVD Player than it did to get an entire operating system.