CD-DVD Tutorials - Herong's Tutorial Examples - Version 2.21, by Dr. Herong Yang
.WMA File Name Extension - Windows Media Audio Files
This section describes what is .wma file name extension or Windows Media Audio files.
.wma is the file name extension for audio files - music and songs in WMA (Windows Media Audio) format, developed by Microsoft.
WMA file format uses ASF (Advanced Systems Format) as the container format to encapsulate audio bitstream data.
WMA (Windows Media Audio) is also a codec (coder and decoder) developed by Microsoft that encrypts audio bitstream data under the ASF container. WMA codec has 3 variants called: WMA Pro, WMA Lossless, and WMA Voice.
WMA file format actually uses WMA codec and its variants under the ASF container.
For more information on .wma file name extension, go to Microsoft Web site.
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