MP4 MP3 Converter converts MP4 to MP3 and MP3 to MP4. It is an ALL IN ONE audio converter that supports more than 100 audio and video files, and keeps ID3 tag when converting. The converter supports batch conversion and is full compatible with Vista.
iCoolsoft MP3 Converter for Mac can convert your MP3 audio to other popular audio formats. And you can convert almost all audio files to MP3 easily with the MP3 Converter for Mac. You are able to manage the output audio freely.