Wmv

From MITVWiki

From wikipedia

Windows Media Video (WMV) is a generic name for the set of video codec technologies developed by Microsoft.

The codecs were originally developed as proprietary codecs for low-bitrate streaming applications. However, in 2003, Microsoft drafted a video codec specification based on its Windows Media Video version 9 codec and submitted it for standardization. The standard was officially approved in March 2006, thus making the Windows Media Video 9 codec an open but still proprietary standard.