Brand name describing file formats, server software, player software, and protocols used by streaming media systems from RealNetworks, a leading streaming media platform vendor.

The URL of the Web page from which a visitor came, as indicated by a server's referrer log file. Some CDNs use referrers as a basic method for user authentication.

Rich media is a term for advanced technology used in Internet ads, such as streaming video, applets that allow user interaction, and special effects.

RealMedia is a proprietary multimedia container format created by RealNetworks. Its extension is ".rm". It is typically used in conjunction with RealVideo and RealAudio and is used for streaming content over the Internet.

Real Time Messaging Protocol is a proprietary protocol developed by Macromedia for streaming audio, video and data over the Internet, between a Flash player and a server. Macromedia is now owned by Adobe, which has released the specification of the protocol for public use.

Real Time Streaming Protocol is a network control protocol designed for use in entertainment and communications systems to control streaming media servers. The protocol is used for establishing and controlling media sessions between end points. Clients of media servers issue VCR-like commands, such as play and pause, to facilitate real-time control of playback of media files from the server.