I recently discovered that newer versions of Windows (starting with version 8.1) have no media player!
I had downloaded the free VLC player, but I had no success in playing a DVD. Kodi is a free, open-source media player for various platforms. Download it here and choose the “current stable release.” Also check out the add-ons for videos, including TV networks.
The player is free and donations are accepted. This is one slick-looking, flawless player.