There are tons of freeware audio converters and they fall in between easy for Beginners and professional for Experts. SDR Free Audio Converter supports both - easy & fully functional plus 100% free. SDR Free Audio Converter quickly and easily converts your audio or video files to WAV, Mpeg4 Audio, AC3 DVD, MP3, OGG and WMA format. Using a clear and smart interface, you can convert files individually or in batches. Which format do you want to convert? Convert audio or video files to WAV, Mpeg4 Audio, AC3 DVD, MP3, OGG and WMA format. Simply select the output format and click convert, you'll be on your way to a new audio format. How is it easy to use? Add or remove any audio or video files to convert to audio format by using menu icons or even just drag & drop function.