Which MIME types are related to file extension ".smv"?

The .smv file extension is associated with 2 MIME types:

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

About .smv Files

SMV files are a type of video file format used in two distinct scenarios.

Snes9x Movie Capture: These files use the application/octet-stream MIME type. They store gameplay recordings made with the Snes9x emulator. This format saves a session as a binary stream of video data.
SigmaTel Motion Video: These files use the video/x-smv MIME type. They are formatted for video playback on systems or devices using the SigmaTel platform.

SMV files serve as game movie captures or as standard video files, depending on the context. Specialized software like the Snes9x emulator handles game captures, while certain media players or converters may support SigmaTel Motion Video.
According to FilExt.com, SMV files can appear in different forms based on their origin and intended use.

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

application/octet-stream, video/x-smv

FAQs

How do I open an SMV file on my computer?

The software required depends on the file's origin. If it is a game replay, open it using the Snes9x emulator via the File > Movie > Play menu. If it is a video from a portable media player, you will need the proprietary SMV Player or the conversion software that came with the device.

How can I convert an SMV file to MP4 or AVI?

For SigmaTel videos, use a dedicated conversion tool like SMV Convert Tool or Video2SMV. For Snes9x game captures, you cannot use a standard video converter; instead, play the file inside the emulator and use its Export to AVI feature to record the gameplay into a standard video format.

Why won't VLC Media Player play my SMV file?

VLC does not natively support the proprietary codecs used in SigmaTel Motion Video files or the input log format of Snes9x. To watch these files, you must either use the original creating software or convert them to a supported format like video/mp4.

How do I create an SMV file for my MP3/MP4 player?

You must use the specific AMV/SMV Video Converter software provided by the device manufacturer. These tools transcode standard video files into the specific resolution (e.g., 128x128 or 160x128) and MIME type video/x-smv required by the player's chipset.

What is the difference between Snes9x and SigmaTel SMV files?

Snes9x SMV files are binary logs of controller inputs used to replay a game session and are often classified as application/octet-stream. SigmaTel SMV files are actual video containers holding low-resolution visual and audio data for portable playback devices.

General 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.