Advanced Systems Format (also known as ASF and formerly entitled Advanced Streaming or Active Streaming format) provides you with an extensible multimedia file format hosting joint digital data from Microsoft. Its main goal is to support competent playback from various devices such as digital media servers, HTTP servers or local storage. Furthermore, the container file must a single composition to be presented over a broad array of bandwidths.
The basic idea of this multimedia format is to be independent of any specific digital media composition system, OS or data communications protocol. The ASF container comprises at least one media streams with optional authoring control over their relationships for best results in limited-bandwidth scenarios. Moreover, this multimedia file format perpetually protects its integrity assuring that even an incomplete download does not compromise the ability to play it until the stream is broken.
Although ASF files can be edited, their essential purpose regards streaming as well as local playback, supporting live and on-demand digital media content. Also, the ASF container packs DRM (digital rights management) for WMA and WMV (Windows Media Audio and Video) based on a mix of block and ciphers with key exchange and hashing function. To top it all off, it has the capability of storing metadata like artist, title or album for audio files and director of track for video files.
ASF Codec (MPEG-4 V1/2/3) helps you deploy Microsoft's branded codec for ASF / MP42 High-Speed MPEG-4 V1/2/3. It is intended mostly for Microsoft's Windows XP; however, you can install it on newer operating systems if you want to make use of its capabilities. The deploying process consists of unpacking the provided ZIP archive, right-clicking on the MPG4VKI.inf file and choosing the `Install` option.
Checking whether you already have the codec can be done by accessing the Sounds and Audio Devices Properties within the Control Panel under the Hardware tab section's Video Codecs area. Clicking on the Properties tab reveals the installed codecs. A similar process can be done in order to verify the audio codec's installation status.
While this is a sure-to-work method to confirm the codec installation, you can always go for Sherlock, the codec detective software. During the installation, you may be prompted of the unsigned state of the driver – as this doesn't affect your system files, you can choose to continue the operation. If the system notifies you that you are trying to install an older version of the codec, make sure you keep the newer iteration that you already have.
ASF Codec (MPEG-4 V1/2/3) is the codec you are looking for to use whenever you want to get ASF (WMA or WMV) from your encoding processes. It allows you to create the ASF digital media presentation file format for your audio and video clips to be wrapped in. With ASF being your targeted file container, this codec can be the right choice for the job.