SDR Free WMA to MP3 Converter- 100% free, but fully functional. WMA stands for Windows Media Audio and we need to know that WMA is the format that Windows uses for the audio part of Windows Media file and for jobs like recording TV sound. This format is widely compatible inside Windows. But it is different when you want to play a WMA clip on your MP3 Player. That's why you need this SDR Free WMA to MP3 Converter. SDR Free WMA to MP3 Converter is a free application to convert WMA format to MP3 format easily. How is it easy to use? Just add or drag & drop your WMA files to be converted to MP3 formats and click Covert button. That is just all and you may get the result already soon.