A WMV file contains video compressed with a Windows Media Video codec in an Advanced Systems Format container. WMV is a common format for storing video in Windows. Files with the WMV extension can be copied to mobile devices or platforms, but may not open properly if the target system does not support WMV.
WMV supports Digital Rights Management to restrict content usage. However, not every player supports DRM, and DRM support is sometimes broken. Many users face problems opening WMV files.
Video conversion tools like VLC media player, HandBrake, and Xilisoft Video Converter can convert WMV files to MP4 and other formats. Since MP4 works on most systems, converting WMV to MP4 makes the files more usable. An online video converter often limits free conversions, requiring paid upgrades.
WMV files play by decompressing as playback occurs. WMV files can play on Windows Media Player, RealPlayer, PowerDVD and other video players. The file extension associates WMV files with these players.