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Direct Access Archive, or DAA, is a proprietary file format developed by PowerISO Computing for disk image files which supports features such as compression, password protection, and splitting to multiple volumes. It can be handled like a file just like other formats, such as an ISO image and BIN, but is currently only usable by PowerISO software. Popular disk image mounting programs such as Alcohol 120% and Daemon Tools currently do not support the mounting of DAA images. Image File history File links Gnome-globe. ... Image File history File links Question_book-3. ... Image File history File links Emblem-important. ... Image File history File links Broom_icon. ... A filename extension is a suffix to the name of a computer file applied to indicate its type. ... A disk image is a computer file containing the complete contents and structure of a data storage medium or device, such as a Hard drive, CD or DVD. The term has been generalized to cover any such file, whether originated from an actual physical storage device or not. ... PowerISO is a computer program used to create, open, mount, compress, and encrypt ISO files. ... A disk image is a computer file containing the complete contents and structure of a data storage medium or device, such as a Hard drive, CD or DVD. The term has been generalized to cover any such file, whether originated from an actual physical storage device or not. ... This article does not cite any references or sources. ... A disk image is a computer file containing the complete contents and structure of a data storage medium or device, such as a Hard drive, CD or DVD. The term has been generalized to cover any such file, whether originated from an actual physical storage device or not. ... PowerISO is a computer program used to create, open, mount, compress, and encrypt ISO files. ... Mounting, in computer science, is the process of making a file system ready for use by the operating system, typically by reading certain index data structures from storage into memory ahead of time. ... Alcohol 120% is an optical disc authoring program and disk image emulator created by Alcohol Soft. ... This article is about the disk image emulator. ...

Currently there is no information about the format available in order to program third party implementation to read or write DAA format. Among mainstream applications, it can only be opened or converted with PowerISO (Windows and Linux only; the Linux version can only extract or convert it to ISO). Binary-only applications for Windows, Linux x86 & Mac OS X (limited version) are available from PowerISO. PowerISO is a computer program used to create, open, mount, compress, and encrypt ISO files. ... 1. ... This article is about operating systems that use the Linux kernel. ... 1. ... This article is about operating systems that use the Linux kernel. ... PowerISO is a computer program used to create, open, mount, compress, and encrypt ISO files. ...

PowerISO provides a free utility for Linux and Mac OS X which allows you to extract DAA files or convert them into ISO format. The PowerISO Windows trial version is "crippled" in that it only supports converting images from DAA files up to 300MB^{[citation needed]}, less than half of the capacity of a standard CD. CD may stand for: Compact Disc Canadian Forces Decoration Cash Dispenser (at least used in Japan) CD LPMud Driver Centrum-Demokraterne (Centre Democrats of Denmark) Certificate of Deposit České Dráhy (Czech Railways) Chad (NATO country code) Chalmers Datorförening (computer club of the Chalmers University of Technology) a 1960s...

Recently, a command line application has been developed to convert DAA files to ISO files called daa2iso. The program comes with a Windows binary and source code which compiles under Unix-like operating systems when linked to the zlib compression library. A brief tutorial for using the program appeared on Usenet recently, and is available here. A command line interface or CLI is a method of interacting with a computer by giving it lines of textual commands (that is, a sequence of characters) either from keyboard input or from a script. ... // Academia In British academic parlance, a tutorial is a small class of one, or only a few, students, in which the tutor (a professor or other academic staff member) gives individual attention to the students. ... Usenet (USEr NETwork) is a global, decentralized, distributed Internet discussion system that evolved from a general purpose UUCP architecture of the same name. ...

On Linux systems supporting the loop back device, the files in a reconstructed ISO image can be accessed directly by mounting the ISO as a loopback filesystem, using a command such as

mount thing.iso -o loop=/dev/loop0 /mnt

Graphical versions of daa2iso have also been made available for Windows and Mac OS X (see external links below).

Features

• Allows for compression saving space and making it easier to download
• Can be password protected
• Can be split into multiple smaller files

Disadvantages

• Proprietary format, currently with almost no 3rd-party support.
• Slow decompression/extraction process

External links

• PowerISO trial download
• PowerISO utility for Linux
• daa2iso command line application for Windows (source code included, and may be compiled for *nix without modification)
  • daa2iso graphical interface for Windows (requires the above command line application)
  • DAA Converter for Mac OS X, graphical Mac interface for daa2iso