Quick guide
About WMA and MP3 files
WMA - Windows Media Audio
WMA is a Microsoft audio format used by some Windows apps and older media libraries. Converting WMA can make audio easier to use on modern devices and web services.
MP3 - MPEG-1 Audio Layer III
MP3 is a compact audio format that works almost everywhere. It is a good choice when you want a small file for music, voice recordings, podcasts, or sharing audio online.