WMV is a common video file format developed by Microsoft and designed to store or transfer video data. It takes its name from the abbreviation of the name of the Windows Media Video technology itself, with which the file is encoded. Codecs for WMV format are installed automatically along with any version of the Windows operating system. Playing WMV files is possible on almost any media player. Such files may contain both Windows Media Video video data and Windows Media Audio audio data. The format also supports the use of DRM protections to prevent copying.
FLAC is a free cross-platform audio codec format created in 2001 by Josh Colson and Xiph.Org. The name of the format is an abbreviation of the English phrase Free Lossless Audio Codec. When compressing a file into the FLAC format, it is 50-60% of the original file without loss of sound quality (especially when working with voice recordings). When unpacking such a file, absolute originality is respected. Since the format is free and open, it is supported by almost any software, it is perfect for archiving files and for regular listening to digital recordings.