I always use MX Video Player in my smartphone since 3 years. Mx Player is easy to use and 97% smartphone’s users use this application. This application also popular in Google Play Store. It is very high rated app at play store. Video and audio player both supported in MX Player. My friends are also use this app. MX Video Player is my favourite best video player. VLC Player is my optional. MX Video Player also supported mp3, mp4, mkv, flv etc. But AC3 formet not supported in MX Player. VLC and KMPlayer are supported ac3 formet.