Why is there a shockwave file along with my MP4?

Posted on 2011-05-10
Medium Priority
Last Modified: 2012-05-11
Along with my small MP4 video file, I saw a small file (1/10 size of my MP4) with the same name but with a SWF extension.
Why is there a shockwave file with my MP4?
Question by:brothertruffle880
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LVL 16

Expert Comment

ID: 35730145
The shockwave file is a wrapper for your MP4 file for use on the web. Unless you are using HTML5 then you can not use the MP4 file on the web.

Author Comment

ID: 35838054
What's a wrapper?

Author Comment

ID: 35977170
What is a shockwave wrapper?
LVL 16

Accepted Solution

JF0 earned 2000 total points
ID: 35977215
a wrapper is a method so that a non-web file can be used on the web. In this case Mp4 is not a standard web video file but shockwave (swf) is a widely supported format so it is included with your output if you wish to put your video on the web.

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