Only the wmv fileswhich have same frame rate, frame. Output audio file is mp3, and you can listen extracted audio with your mp3 player without any additional conversion or modification. Wmv joiner is an easy-to-use tool for joining several wmv files into a bigger one. Video osted extractor is easy to use tool to extract audio from video avi, asf, wmv files. And the conversion speed is extremely fast.Having bought a subscription, you can download this or other directories on our website. To download the file, click on the button below.