Open AA3 file

AA3 files: what are they and how do I open them?

aa3 file icon Are you facing difficulties opening unknown files on your computer, or wondering exactly what this file is?
We've got the information and best software solutions for opening these files effortlessly.

Sony ATRAC audio

Files with aa3 extension is used for a special Adaptive Transform Acoustic Coding (ATRAC) format used by Sony for their MiniDisc format.

Further details:

The aa3 file extension is mainly related to a proprietary audio format used by Sony - ATRAC.

Adaptive Transform Acoustic Coding is an audio compression technology for MiniDisc media. The format is no longer actively used.

Open file with:

Sony SonicStage icon

Sony SonicStage

Audio data management program for portable devices

Sound Forge icon

Sound Forge

A digital audio editing software from Sony

Vegas Pro icon

Vegas Pro

A set of professional tools for broadcast production by Sony

ACID Pro icon


A dedicated Audio production program

AT3 to AA3 Converter

A converter for Sony audio

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.aa3" has the file extension "aa3". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.