Hello Readers:
There are lots of audio/video converters available. Many of them charge you some cost for full version and the rest of them don't allow the HQ conversion and don't have user friendly interface. Today Free Software Advisor brings a new and easy to use tool for the conversion of your favorite audios/videos; OXELON Media Converter. A free and easy to use, user friendly interface containing tool for Audio/Video conversion of you favorite multimedia files.This software also allows the extraction of audio from video files.
This free software has following major features:
1:  It processes many files simultaneously
2:  It converts your multimedia file to many formats
3:  It allows you to extract audio out of the video files
4:  You can resize your video file and allows you to recompress the audio.
and many more......
The most important feature of this software is its assimilation with Windows Explorer. This feature allows you to convert your audio/video files by just right clicking on them (without running the software). If you only want to extract only audio from your video file. All that you need is to just right click on your video file. To extract audio out of video file click on Oxelon - Convert to audio and choose your desired output format of audio file.
There are a lot of Video output formats available within this Free Audio Video Converter (e.g 3GP, ASF, DVD, FLV, MPEG and many more to choose from)

I personally recommend you this software because of its assimilation with the Windows Explorer. This integration makes audio/video conversion very easy and quick. This software is compatible with the Windows XP/7/vista/2000. Once you have downloaded the setup file you'll also have to download the plugins of this software for efficient performance.
Download | OXELON Media Converter

You sholud also checkout the following free tools related to downloading and conversion of audio video files.
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VideoGet+Crack (Download videos from any website in any format)

Free Download WinX HD Video Converter Deluxe "worth $49.95"