- Extension
- .m4r
- .caf
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Apple Inc.
- Apple
- 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.
- Digital audio format based on Apple's Core Audio technology; stores audio data as well as text annotations, markers, channel layouts, and other information; similar to an .AIFF or .WAVE file, but does not have a 4GB size limit and can store any number of audio channels.
- MIME Type
- audio/x-m4r
- audio/x-caf
