M4A to MP3 Converter a powerful audio extractor extracting audio from video.It allows converting M4A audio to MP3 easily.

Key features: Batch-convert unlimited Video files in the fast and easy setup interface; Extractor Video files into custom file sizes for use with portable MP3 players; You can customize the size of output file and its Bitrate will be calculated automatically; Multithreading are supported and the more files you convert the faster; Easy to use - Just two clicks, everyone can become the master of M4A to MP3 Converter; Automatically shutdown the computer after conversion; High speed - A two hours long movie can be convert into a MP3 file with high quality within one hours; Many settings are adjustable, such as audio size, bit rate, frame rate, so that the output MP3 audio will match most portable MP3 player.