- Extension
- .m4r
- .rm
- Format
- Binary
- Binary
- Category
- Audio
- Video
- Developer
- Apple Inc.
- RealNetworks
- Description
- M4R is an iTunes ringtone file that stores mono channel audio. They are identical to the M4A format files only that they are correctly used for ringtones.
- An RM file is a multimedia file used by RealPlayer, an audio and video playback and streaming program. It contains audio or video data or a link to a streaming media file, which is played back as it is downloaded. RM files are commonly used for streaming content over the Internet such as video and Internet radio.
- MIME Type
- audio/x-m4r
- audio/x-pn-realaudio
