Which MIME types are related to file extension ".fm2"?
The .fm2 file extension is associated with 1 MIME types:
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .fm2 Files
FM2 files are movie capture files used in the FCEUX emulator.
They store gameplay records. The file does not hold video data but records controller inputs and game timing. This lets FCEUX replay sessions exactly as they occurred.
They use the MIME type application/octet-stream, which shows they are stored as binary data.
- Game Recording: Capture and save Nintendo Entertainment System gameplay.
- Playback: Replay game sessions for review or debugging.
- Sharing: Exchange recorded play sessions with others.
Based on information from FilExt.com, FM2 files are tailored for recording and replaying detailed game interaction data.
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
FAQs
How do I open an FM2 file?
You need the FCEUX emulator to open and play back FM2 files. To watch the recording correctly, you must first load the exact NES game ROM associated with the file into FCEUX, and then select the Replay Movie option.
Can I convert an FM2 file to a video format like MP4?
You cannot convert it directly with a standard video converter because the file contains controller input data, not video frames. However, you can load the file in FCEUX and use the emulator's AVI Export feature to render the playback into a standard video file.
Why won't VLC or Windows Media Player play my FM2 file?
FM2 files are not standard video files; they record game timing and button presses. Media players do not understand this proprietary format, which is often identified by the system as generic binary data or application/octet-stream.
Do I need the original game ROM to play an FM2 file?
Yes, you must possess the exact version of the NES ROM used during the recording. If the ROM is missing or differs (e.g., a different region or checksum), the playback will desynchronize, and the gameplay will appear broken.
How do I create an FM2 file?
You can create an FM2 file by using the Record Movie feature within the FCEUX emulator. This allows you to save your gameplay session for later review, sharing, or creating Tool-Assisted Speedruns (TAS).
What is the MIME type for FM2 files?
FM2 files are typically handled as application/octet-stream. This indicates to the operating system that the file contains binary data that requires a specific application, such as FCEUX, to interpret. See application/octet-stream for more information.
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.