Because both the QuickTime and MP4 container formats can use the same MPEG-4 formats, they are mostly interchangeable in a QuickTime-only environment.Īudio Video Interleaved (also Audio Video Interleave), known by its initials AVI, is a multimedia container format introduced by Microsoft in November 1992 as part of its Video for Windows software.
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.