Which MIME types are related to file extension ".aa3"?
The .aa3 file extension is associated with 3 MIME types:
audio/atrac-advanced-lossless, audio/atrac-x, audio/atrac3.
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
About .aa3 Files
AA3 files are proprietary audio files that use ATRAC codecs. They incorporate both advanced lossless compression and standard ATRAC compression methods.
These files use several MIME types: audio/atrac-advanced-lossless, audio/atrac-x, and audio/atrac3.
- Main Use: Storing high-quality music for playback on Sony devices.
- Compression Methods: Can deliver lossless audio or efficient compressed sound using Adaptive Transform Acoustic Coding.
- Software Support: Typically opened and managed by Sony applications (e.g., SonicStage) or media players with the right codec packs.
Based on information from FilExt.com, further details can be found on the AA3 page.
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
audio/atrac-advanced-lossless, audio/atrac-x, audio/atrac3
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.