AVI files are one of the few container formats that support alpha channel, or transparency. AVI is often used to save uncompressed, or lossless video, but because of this AVI files tend to be very large - 2-3 GB for every minute of video. MKV is rare in video file formats as it is completely open-source, and has wide support for integrated non-video elements, such as chapters, selectable video or audio streams, or subtitles embedded in a single file.Īudio Video Interleave or AVI files are a popular video container created by Microsoft in 1992 and are the standard across Windows machines. Developed in Russia in 2002, MKV is a container format that stands for Matroska Video, taking the name from Russian nesting dolls or ‘matryoshka’.
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