White Paper: Media Container File Formats



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File extensions such as .mkv and .avi are also containers. The fun part is that using the right program you can extract frames (as pictures) and even the whole audio of the video. I have used an extension for Total Commander that did this pretty well. As far as I remember, you can open them with some archiving programs also, but I cannot remember which ones.



Sounds like a coding nightmare to me.



....when it's a ......folder?


Take an OS, and edit out all the efficiency, and what you have left is a post-XP Microsoft operating system :)



Not exactly.  A folder (often called a directory for the following definition) does not actually "contain" anything.  It's merely a virtual technique to help us humans better organize the files in a filesystem.  It's actually just a list of files/folders and their respective locations on the disk...hence where the directory comes from.  These media container formats actually encapsulate their contents on the disk.

It is true, however, that in the end everything ends up in sectors on the drive.  This is just on another layer of data storage. 

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