A123 All to MP3 Converter - Version 6.7 A123 All to MP3 Converter is an all-in-one audio conversion tool for converting all popular video and audio files to MP3, AAC, AC3, AMR, M4A, OGG and WAV audio formats. It supports converting all popular video files such as AVI, WMV, MPEG, MP4, ASF, VOB, 3GP to audio formats, and converting between popular audio formats, such as MP3, AAC, AC3, AMR, M4A, OGG and WAV easily and fast.