Open M4R Files

iPhones typically use iTunes-generated M4R files as their default ringtones

While there are numerous applications that can be used to create M4R files, there is a limited range of tools that will play these tracks.

M4R players will offer users the possibility to make their own custom playlists that would contain their preferred audio tracks.

There are also some M4R players that will allow users to export their files to more common audio formats.