From 4Videosoft Studio:
4Videosoft iPhone 4 Ringtone Maker is available for users to convert MP3 to iPhone 4, iPhone OS 3.0/3.1 Ringtone, even convert any video/audio to iPhone 4 M4R Ringtone, including 3GP, AVI, MKV, RM, MOV, XviD, M4A , MP3 to M4R iPhone 4 ringtone. Also convert MTV albums, concert recordings, and all popular DVDs to iPhone ringtone. Most pleasantly, you can put the converted M4R Ringtone on the iPhone 4. Furthermore, iPhone 4 Ringtone Maker can convert any time length of the video/audio to M4R iPhone 4 Ringtone, edit the added iPhone ringtone, along with the function to pre-listen the original sound or the converted file sound before you make the M4R iPhone Ringtone. What's more, the impressive and user-friendly interface would please you great more. Key functions: 1. Practicable to convert video to iPhone 4 Ringtone 4Videosoft iPhone 4 Ringtone Maker makes it practicable to convert 3GP, AVI, MKV, RM, MOV, XviD,MPEG, WMV, DivX, MP4, H.264/AVC to iPhone M4R. 2. Output iPhone Ringtone from audio source Possible to put WMA, WAV, RA, M4A, MP3 files on iPhone, and acts as iPhone 4 Ringtone using 4Videosoft iPhone 4 Ringtone Maker. 3. Make iPhone Ringtone from DVDs Professional way to make iPhone ringtone from MTV album, concert recordings and other DVDs with the assistance of 4Videosoft iPhone 4 Ringtone Maker. 4. Directly export converted Ringtone to iPhone 4 You can export the converted Ringtone to your iPhone, iPhone 3GS, iPhone 4 without iTunes easily. 5. Edit iPhone 4 ringtone perfectly Using 4Videosoft iPhone 4 Ringtone Maker, it's easy to edit the added iPhone 4 ringtone by removing it or renaming it directly. 6. Adjust iPhone 4 Ringtone length 4Videosoft iPhone 4 Ringtone Maker gives you access to make any time length Ringtone from video/audio sources. 7. Do the Pre-listen work You can pre-listen both your source video/audio sound and the effect of converted sound before you generate into iPhone 4.