What is an .rm file extension?
The .rm (RM) file extension stands for RealMedia, and it is a file type used by RealPlayer to play video or audio files. It is a proprietary format created and owned by RealNetworks.AssociationThe RM extension is one of many file extensions commonly associated with RealMedia and the RealPlayer. Others include RA, RV, RMVB, RP, TR, RAM and RMN.FunctionVideo under the RM file extension is called RealVideo, and audio under the RM file extension is called RealAudio.BenefitsOne advantage to the RM format when compared with other audio and video formats is its size. An RM file is usually much smaller than both the WMV and AVI formats, with similar audio and visual quality.Streaming ContentSome RM files don’t actually contain any audio or video information. Instead, they serve as links streaming media such as a video broadcast or online radio station.AlternativesAlthough RM files are designed to be played by RealPlayer, programs and codecs exist to make .rm files compatible with other media p