Directory Opus

Directory Opus is a popular file manager program, originally written for the Amiga computer system in the early to mid-1990s. Development on the Amiga version ceased in 1997, but an entirely re-written version of Directory Opus is still being actively developed and sold for the Microsoft Windows operating system by GPSoftware.
Directory Opus was originally developed by, and is still written by, Australian Jonathan Potter. Until 1994, it was published by well-known Amiga software company Inovatronics, when Potter joined with Greg Perry and the Australian-based GPSoftware to continue its development, and has since been published by GPSoftware.

Features

Directory Opus has evolved since its first release in 1990 as a basic two-panel file manager. The interface has evolved significantly due to feedback given by its users. Some of the features include:

Single or dual-panel exploring.
Folder tree.
Tabbed explorer panels.
Ability to maintain date created/modified timestamps for both files and folders.
Internal handling of ZIP, RAR, 7Zip and other archive formats.
Internal FTP handling, including advanced FTP and SSH.
Internal MTP handling for portable devices like phones and cameras.
Flat-file display, where you can flatten a folder tree and even hide the folders themselves.
Powerful file selection and renaming tools, with advanced regex.
User-definable toolbars, menus, filetypes and filetype groups.
Preview panel, with preview of thumbnails.
File collections. These are like virtual folders that contain links to the original files.
History

Release history

Amiga release history

Opus 1: January 1990
Opus 2: February 1991
Opus 3: 1991-12-01
Opus 4: 1992-12-04
Opus 5: 1995-04-12
Opus 5.5: 1996-08-01
Opus Magellan : 1997-05-17
Opus Magellan II : 1998-11-01
Opus Magellan II GPL : 2014-05-11

Versions 1 and 2 were only available direct from the author. Versions 3 and 4 were published by Inovatronics. Versions since 5 have been published by GPSoftware. The full version of Magellan II is included for free with AmiKit package.

Windows major release history

Opus 6: 2001-06-18
Opus 8: 2004-10-04
Opus 9: 2007-04-27
Opus 10: 2011-04-30
Opus 11: 2014-03-03
Opus 12: 2016-09-05

All Windows versions published by GPSoftware.

Open source release history

GPSoftware released the older Amiga Directory Opus 4 source code in 2000 as open-source under the GNU General Public License. AmigaOS4, AROS and MorphOS ports of this version were made available. Magellan II was released as open source under the AROS Public License in December 2012.

The open source 'Worker' file manager is heavily inspired by the Directory Opus 4 series.

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