You just cannot use any other audio file as ringtone in your iPhone as it supports only M4R format. Now if you wish to set your favorite audio songs as the ringtone in your iPhone all you need is MP3 M4R Converter 3.0.716 that can be your best friend meant for the same cause. This converter can possibly convert almost all the available audio as well as video format into M4R format within few seconds. With the only exception proprietary files and DRM-protected format this utility supports as many as one hundred of file format that includes AVI, MPEG, FLV along with MP3 and ACC. MP3 M4R Converter brings with it a well designed graphical user interface which you can be understood and used by any novice computer user without any kind of trouble.
MP3 M4R Converter is a feature rich tool and is capable enough to keep as well as add ID3 tags whenever you convert the various files like WMA, OGG, M4A etc. Even if the volume of your audio file is very low you can easily increase the volume of the output file with the changing volume setting it has. It supports batch conversion that will assist you to conveniently convert many numbers of files together. You just have to add the video and audio files in the list and click the button and see all the files getting convert automatically. It supports multi-core CPU enabling you to convert the files at a high speed helping you save your time.
MP3 M4R Converter is compatible with all the version of Windows OS from Windows 98 to Windows Vista and Windows 7. Going by all the features that this fine converting software it posses we can easily rate this tool with a score of 3.5 on a scale of 5.