Ultra Audio Converter is a convenient and easy Utility tool for Exporting your favorite audio formats. the Exporting formats are compatible with popular needs and most of the devices.
and tag editting for mp3,m4a is fully supported.
Also Ultra Music Converter can help you easily extract and convert the audio content from video formats.
In fact , Ultra Audio Converter is the only audio converter app you need on your mac!

Free trail version can be downloaded on the website.

Video Import formats supported:
WMV, RM, RMVB, MPG, AVI, MKV, MOV, FLV, MP4, TS, MTS, 3GP and more.
Audio Import formats supported:
MP3, WAV, M4A, APE, OGG, FLAC and more.
Music Tag Edit Support formats: MP3, M4A (Apple lossless), FLAC, MP4

Export Audio Formats
MP3, M4A(Apple Lossless), AAC, WMA,FLAC,WAV(pcm),OGG(Speex,Vobis),AMR,MPEG2 Audio
Devices:iPod, iPhone 4, iPad 1,2, new iPad

Main Features:
1. Converting various popular formats at one click.
2. Play music in background in file list.
3. Tag Editting for mp3 and m4a formats is fully supported. All metadata in source file will be kept for exporting. also compatible with iTunes.
4. Intuitive and easy settings of output formats.
5. Easily trim audios.
6. iTunes syncing compatible while exporting.