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Asked: 2026-05-20T08:42:34+00:00

I need to map various video and audio file types that can be upload

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I need to map various video and audio file types that can be upload to my application.
In the following microsoft’s documentation they publish the supported mime types by IE.

but I think that this list is very partial. For example I couldn’t find there the content type ‘video/quicktime‘ that is also generated by my IE8
So my first question is – where can I find a list of all IE/windows supported mime types.

My second question is – is there a difference between the mime-type and the content-type.
because for example in this file type list the mime type of .AVI file is video/x-msvideo while the checked content type of it is video/avi
So why there is a difference between mime and content type?

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1 Answer

  1. Editorial Team

    Internet Explorer can support an effectively infinite list of MIME types depending on what applications are installed on the client. See http://blogs.msdn.com/b/ieinternals/archive/2009/07/01/ie-and-the-accept-header.aspx for an explanation of the ACCEPT header and information about changes that have been made for IE9.

    MIME Type and Content-Type are often used interchangeably. The Content-Type header contains a MIME Type and [optionally] character set information. In the case of AVI, there are a number of different MIME types which are all the same thing under the covers; that happens quite often (e.g. there are about 8 supported MIME types for JavaScript).

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