Windows Media Video (WMV) is a format developed by Microsoft for Internet streaming and watching videos on a PC. This is a type of video that can be played on your computer and portable media players. The most important feature of a WMV file is that its format allows large video files to be compressed, retaining the rich quality of the video. It is a file format developed to store video content in a compressed format, so that movies and other video programs can be viewed on a personal computer. These videos can be watched from the hard drive of your computer, or other media players. To play a WMV file, a set of codecs are required. A codec is a program that can easily read a file, creating video and audio formats from the provided data. WMV files may be played on Microsoft Windows Media Player and other media players as well. The latest version of WMV is WMV10.