What is MIME type "application/x-dtbresource+xml"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

The application/x-dtbresource+xml MIME type defines an XML file format used to store resource information for digital talking books. It organizes links between text, audio, and navigation data so that reading software can access and synchronize multimedia elements.

Files with the RES extension commonly use this format. It tells the system where to find various assets and how they connect.

XML structure: Enables a clear, hierarchical organization of resource data.
Resource linking: Associates text and audio for synchronized playback.
Accessibility support: Often used in digital talking books to aid visually impaired users.

This MIME type ensures that content is well structured and easily navigable in digital publications. For more detailed information, visit the DAISY Consortium website.

Associated file extensions

.res

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: application/x-dtbresource+xml

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="application/x-dtbresource+xml">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');
    
    http.createServer((req, res) => {
      res.setHeader('Content-Type', 'application/x-dtbresource+xml');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.res

FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.