Developer's description:AVCWare iPhone Ringtone Maker for Mac helps you make iPhone ringtones from various audio and videos files on Mac, and then upload the M4R ringtone files directly to your iPhone 3G. Customize your ringtones by trimming the audio/video file and adding fade-in effects. Formats supported: AVI, MPEG, WMV, DivX, MP4, H.264/AVC, AVCHD, MKV, RM, MOV, XviD, 3GP, MP3, WMA, WAV, RA, M4A, AAC, AC3, OGG, etc. Key features: 1. Converts MP3, WMA, WAV, RA, M4A, AAC, AC3, OGG and other music files to M4R iPhone ringtones. 2. Make iPhone ringtones from video files like AVI, MPEG, WMV, DivX, MP4, H.264/AVC, AVCHD, MKV, RM, MOV, XviD, 3GP, etc. 3. Helps you transfer the converted M4R ringtone files directly to iPhone without the use of iTunes. 4. Select only the segment of audio you want as your iPhone ringtone by drag and drop or set start and end times. 5 Preview the video/audio clips to make sure it’s exactly what you want prior to creating the iPhone ringtone. 6. Intuitive interface and super fast speeds to create your iPhone ringtones. Simply add your video and audio file, select the segment you want, and then simply upload the ringtone to your iPhone. 7. The Mac iPhone ringtone maker is available in English, German, Japanese and Chinese.