Which MIME types are related to file extension ".sub"?
The .sub file extension is associated with 3 MIME types:
image/vnd.dvb.subtitle, application/octet-stream, text/plain.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .sub Files
SUB files are subtitle files that display text with videos.
They come in various formats based on different MIME types. According to FilExt.com, each MIME type represents a unique use case.
- DVB Subtitles: Uses the MIME type image/vnd.dvb.subtitle. These subtitles are image-based. They are common in digital broadcasting systems.
- DVD Subtitles: Uses the MIME type application/octet-stream. This binary format is often seen with DVD subtitles. It requires DVD players or specialized software to display correctly.
- MicroDVD Subtitles: Uses the MIME type text/plain. These are plain text files. They are easy to edit in a text editor and are often used with software like VLC or Subtitle Workshop.
Relationship between file extension and MIME type
A file extension is a suffix at the end of a filename that indicates what type of file it is. File extensions help both users and operating systems identify what application should be used to open the file.
File extensions are typically separated from the filename by a period (dot) and consist of 2-4 characters, though they can be longer. For example, in the filename "document.pdf", ".pdf" is the file extension.
File extensions are closely related to MIME types, as they both serve to identify the format of a file. However, while MIME types are used primarily by web browsers and servers, file extensions are used by operating systems and applications.
Associated MIME types
image/vnd.dvb.subtitle, application/octet-stream, text/plain
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 can one extension have multiple MIME types?
Different programs and historical usage may assign various MIME identifiers to the same file format. Listing them together helps maintain compatibility across tools.