The definitive audio conversion and extraction specialist. ImTOO Audio Encoder is all you will ever need to convert between most audio formats as well as extract audio from most video files. Among the many different media formats supported by ImTOO Audio Encoder include videos (such as AVI, MPEG, WMV, MP4, FLV, MKV), high-definition (HD) videos (such as H.264/MPEG-4 AVC, AVCHD), and audio (such as MP3, WMA, WAV, AAC, FLAC, OGG, APE).