VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Emit - Emit can stream from a Windows/Mac/Linux machine to an android/iOS device.
Sigma Media player - Sigma Media Player is a full-featured and convenient to use media player for playing DVD, Video CD, Audio-CD and various other media file formats.
VPlayer - VPlayer - a free music player for VKontakte.
Vso Media Player - VSO Media Player is the name of a highly advanced media player that in addition to playing multiple audios and video files is capable of playing MKV files.
Vinyl Music Player - A fork of Phonograph Music Player that "makes all Pro features free, as they used to be".