It took some time for me to understand these various wireless display standards. http://www.howtogeek.com/177145/wireless-display-standards-explained-airplay-miracast-widi-chromecast-and-dlna/ article explained it well. DLNA – only for local files not screen sharing. Chromecast – only for online content / streaming and it will not work with local files or screen sharing (though chrome browser single tab could be mirrored). Airplay and Miracast – handles both. Airplay has good reviews but restricted to Apple products alone. Miracast is open and it has its own pros and cons.