Features:
• Convert MP4 to MP3, M4A to MP3, AAC to MP3, MP3 to M4A;
• Convert between AAC, MP4, MP3, M4A, WAV, WMA, MP2, VQF, APE, OGG, FLAC;
• Convert video files to audio formats such as AVI, WMV, MPEG, MP4 to MP3;
• The audio converter supports multithreading and batch conversion;
• Copy ID3 tag between audio formats (reserve ID3 tag during conversion);
• When converting to MP3, bitrate, VBR or CBR, stereo or mono are selectable;
• You can select the compression method, sample rate, bitrate, stereo or mono when converting to WAV;
• The MP4 to MP3 converter allows users to select whether delete the original files.

Homepage - http://www.xilisoft.com/audio-converter.html