RealPlayer

RealPlayer, formerly RealAudio Player, RealOne Player and RealPlayer G2, is a cross-platform  media player app, developed by RealNetworks. The media player is compatible with numerous container file formats of the multimedia realm, including MP3, MP4, QuickTime File Format, Windows Media format, and the proprietary RealAudio and RealVideo formats. RealPlayer is also available for other operating systems (OS) and Linux, Unix, Palm OS, Windows Mobile and Symbian versions have been released.