A lossless codec , WMA Lossless , compresses audio data without loss of audio fidelity ( the regular WMA format is lossy ) .
WMA Pro , a newer and more advanced codec , supports multichannel and high resolution audio .
A lossless codec , WMA Lossless , compresses audio data without loss of audio fidelity ( the regular codec format is lossy ) .
WMA Pro , a newer and more advanced codec , supports multichannel and high resolution audio .