What is MIME type "application/vnd.rn-realmedia-vbr"?

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

application/vnd.rn-realmedia-vbr is a MIME type for RealMedia files that use variable bitrate encoding. This signature tells systems that the file contains digital media optimized for streaming and playback, dynamically adjusting the data rate based on the complexity of the audio/video.
Files with this MIME type are usually in the RMVB format.

Optimized Streaming: Enhances network delivery by adjusting quality and file size on the fly.
Efficient Encoding: Uses variable bitrate to maintain quality without wasting bandwidth.
RealMedia Integration: Typically played with RealNetworks software and compatible media players.
Legacy Support: Remains in use for specialized workflows and older media systems.

For further technical details, visit RealMedia on Wikipedia.

Associated file extensions

.rmvb

Usage Examples

HTTP Header

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


    Content-Type: application/vnd.rn-realmedia-vbr

HTML

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


    <a href="file.dat" type="application/vnd.rn-realmedia-vbr">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/vnd.rn-realmedia-vbr');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.rmvb

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.