For those who don't know, Plex is basically a DLNA player that also pulls data from various online sources to add info about the media you own/play and present it well. It also remembers where you were in if you stop watching, lets you continue on other devices, etc. It basically turns all your media, regardless of source, into your own personal netflix player. It's a great piece of software, especially if you buy movies/tv shows digitally from various sources and want one place to access them all in a convenient, consistent and well presented way.