![]() The format specifies a multimedia container file that contains one or more tracks, each of which stores a particular type of data: audio, video, or text (e.g., for subtitles). While the ASF can encapsulate multimedia in other encodings than the WMV file standard specifies, those ASF files should use the. Because both the QuickTime and MP4 container formats can use the same MPEG-4 formats, they are mostly interchangeable in a QuickTime-only environment.Ī WMV file uses the Advanced Systems Format (ASF) container format to encapsulate the encoded multimedia content. ![]() The International Organization for Standardization approved the QuickTime file format as the basis of the MPEG-4 file format. ![]() QuickTime File Format (QTFF) is a computer file format used natively by the QuickTime framework. The original video compression format used in the file, also known as WMV, was originally designed for Internet streaming applications compared to RealVideo. Windows Media Video (WMV) is a file type that can contain video in several video compression formats developed by Microsoft.
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