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Supported audio and video codecs

The Player can play files that have been compressed by using any of the following audio and video codecs.

Audio codecs

  • Microsoft Windows Media Audio codec versions 1.0, 2.0, 7, 8, and 9

    Although Windows Media Player for Mac OS X supports all the variants of the Windows Media Audio 9 codec (including the Windows Media Audio 9, Windows Media Audio 9 Professional, Windows Media Audio 9 Voice, and Windows Media Audio 9 Lossless codecs), the following variants are only partially supported:

    • Windows Media Audio 9 Professional codec. Multiple channels are combined into a stereo mix during playback. Content with an audio sampling rate higher than 48 kilohertz (KHz) outputs as 48 KHz.
    • Windows Media Audio 9 Lossless codec. Content with an audio sampling rate higher than 48 KHz does not play back.
  • ITU-T G.726

Video codecs

  • Microsoft Windows Media Video codec versions 7, 8, and 9

    Note that Windows Media Player for Mac OS X does not support the Windows Media Video 9 Screen codec.

  • Microsoft Windows Media Screen codec version 7
  • Microsoft Windows Media 9 Image codec
  • Microsoft MPEG-4 codec version 2.0 and 3.0
  • ISO MPEG-4 video codec version 1.0

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