MoliPlayer Pro is a multi-format audio and video player for Windows Phone.
MoliPlayer Pro is able to play a range of audio and video formats, including MP4, AVI, MKV and FLV. You can access media from your camera roll or SD card, and transfer video from your PC or Mac via WiFi. There's an option for searching web video, including the option to download videos.
In lieu of a version of VLC Player for Windows Phone, MoliPlayer Pro is one of the best ways to play video files on your device.