If you are using the Windows 7 Beta version, then you might need the codec pack for player video formats which are not natively supported on Windows Media Player.如果您使用的是Windows 7測試版，那麼您可能需要解碼器視頻格式的播放器不屬於原生支持Windows媒體播放器。 The Windows 7 Codec pack includes the native H264 playback in WMP12 and Media Center and also DXVA accelerated H264 playback is provided by the codec [...]在Windows 7解碼器包括本地H264在WMP12播放和媒體中心，也支持DXVA加速H264回放提供編解碼器[...]
