What is MIME type "image/x-commodore-vbm"?

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

image/x-commodore-vbm is a MIME type for a specific bitmap image format. It represents the VDC BitMap version 3 used on Commodore systems.
It stores raw graphic data in a way that fits the hardware design of vintage Commodore computers.

Used in retro computing and emulation projects.
Preserves original graphics for vintage software archives.
Helps software identify and correctly process Commodore bitmap images.

Files with this MIME type are commonly found as BM or VBM files.
They contain image data optimized for Commodore video display hardware.

For more details on MIME types and related file formats, please check the IANA Media Types resource.

Associated file extensions

.bm, .vbm

Usage Examples

HTTP Header

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


    Content-Type: image/x-commodore-vbm

HTML

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


    <a href="file.dat" type="image/x-commodore-vbm">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', 'image/x-commodore-vbm');
      res.end('Content here');
    }).listen(3000);

Associated file extensions

.bm, .vbm

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.