ASF file format
| Extension | .asf |
| Category | video |
| Programs | VLC Media Player Windows Media Player |
| Main program | Real Player |
| Description | .asf (Advanced Systems Format) The .asf format is a digital audio/video container format created by Microsoft. It is part of the Windows Media framework. ASF is most commonly used for streaming media purposesThe format doesn’t specify the codec of the video or audio, which means it can contain data that is compressed with a variety of codecs. While it is often associated with Windows Media Audio (.wma) and Windows Media Video (.wmv) file formats, it can also contain other types of compression formats. ASF files are designed to be digital containers for playing back and streaming digital media. |
| Technical details | The `.asf` format, or Advanced Systems Format, is a digital audio/video container format developed by Microsoft for streaming and playback. Here are the key technical details: - Container Format: Encapsulates various media types. - Codec Independence: Supports multiple audio and video codecs. - Metadata: Stores extensive information about content. - Network Streaming: Designed for internet streaming. - Error Correction: Built-in support for data transmission errors. - DRM: Allows digital rights management for content protection. - File Size and Quality: Varies based on codec and bitrate. - Compatibility: Works with Windows Media Player and other players. - Script Commands: Supports event triggers during playback. - Timestamps: Enables synchronization of audio and video. - Extensibility: Adaptable for adding new features. - Streaming Protocols: Works with MMS and RTSP. `.asf` is commonly used within Microsoft's ecosystem for streaming and playback but can be played on other media players with the appropriate codecs. |
| MIME type | video/x-ms-asf application/vnd.ms-asf |