.M4R File

The m4r file extension is associated mainly with the Apple iPhone.

The m4r file contains ringtone in M4A MPEG-4 audio file format, which is used as the default audio format to store songs in iPhone. Basically M4R file extension is used only to differentiate ring tones from songs in iPhone, but otherwise it is exactly the same format.

iTunes are used to transfer ringtones to iPhone. Select a m4a file, that you want as your ringtone, rename file extension M4A to M4R and double click on it.

iTunes will import the m4r file to its database and will put it in Ringtones library as well. After that connect iPhone to computer and in iTunes drag the ringtone and drop it on your device.

In iOS version 5, Apple introduced new Tone Store, where users can buy ringtones for their iPhones. Ringtones are downloaded to phone immediately after payment is processed.

The maximum length of m4r ringtone must be max. 40 seconds.

An m4r file extension is used for ringtones that is used by Apple iPhone. iPhone ringtones are stored in the same m4a audio format as songs. However m4r file extension is used to differentiate ringtones and songs.

How to open:

Use Apple iTunes for Windows or Mac to playback the *.m4r files or import them as ringtones to iPhone.

How to convert:

Select song in M4A audio format and just rename M4A file extension to M4R. If you have songs stored in another file format, just convert them to M4A or M4R with any suitable audio converter.