RealNetworks, Inc. creates and delivers digital media content such as music, games and video to consumers worldwide. It sells digital entertainment services to consumers for use with a variety of platforms such as personal computer (PC), portable music players, mobile phones, home entertainment systems and other consumer electronic devices. Its products and services include RealPlayer, the media player to enable one-click downloading and recording of Internet video, Rhapsody digital music service, which delivers song plays, RealArcade, which is a casual games services on the Internet, and a variety of mobile entertainment services, such as ringback tunes, music-on-demand and video-on-demand, offered to consumers through mobile operators. Its operations are based on three segments: Music, Consumer, Technology Products and Solutions. Its subsidiaries include Zylom, Trymedia, WiderThan Co. Ltd., and SK Telecom.