WMA Pro , a newer and more advanced codec , supports multichannel and high resolution audio .
The original WMA codec , known simply as WMA , was conceived as a competitor to the popular MP3 and RealAudio codecs .
WMA   , a newer and more advanced WMA , supports multichannel and high resolution audio .
The original WMA codec , known simply as WMA , was conceived as a competitor to the popular MP3 and RealAudio codecs .