WebM is an open multimedia file format developed by Google's IT giant. It was first introduced by the developer on May 19, 2010 at the Google I / O conference. Typically, WebM files store video with compression using VP8 technology, as well as audio with compression using Ogg Vorbis compression. The initial developer of VP8 technology is ON2, which Google later acquired. WebM format provides efficient compression and high quality video. The format is supported by Google Chrome, Mozilla Firefox, and Opera. When installing the necessary codecs in Windows, this format is also supported in Internet Explorer.
ASF is a media file format developed by Microsoft. This format is preferred for Windows Media. This player can play not only video or audio files, but also mixed recordings that are compressed using certain codecs and saved in an ASF file. Files of this format also additionally store metadata (including title, author, copyright information). The full original name of the format is Advanced Systems Format. The main goal of Microsoft in developing this format was to provide streaming media playback.