vast hd video converter is a high quality and powerful video tool. you can easily convert your favorite popular video formats, like avi, mov, mpg, mpeg, mp4, divx, xvid, wmv, h.263 and h.264 to HD Video format and vice versa.and you can also extract audio from video and transform between mp3, m4a, wma, wav, aac, ogg and ac3 audio files as you want