Stellar Audio Video Converter [Download] Supports all popular video file formats, including MPG, MP4, MKV, FLV, AVI, 3GP, WMV etc Easily transform common audio formats, such as MP3, WAV, WMA, FLAC, OGG, AAC, and MP4. Extracts MP3 audio file from a video. Option for digital audio extraction from CD. Files conversion can be done in a batch.