<s>
Directory	B-Application
Opus	I-Application
(	O
or	O
"	O
DOpus	B-Application
"	O
as	O
its	O
users	O
tend	O
to	O
call	O
it	O
)	O
is	O
a	O
file	B-Application
manager	I-Application
program	I-Application
,	O
originally	O
written	O
for	O
the	O
Amiga	B-Device
computer	I-Device
system	O
in	O
the	O
early	O
to	O
mid-1990s	O
.	O
</s>
<s>
Commercial	O
development	O
on	O
the	O
version	O
for	O
the	O
Amiga	B-Device
ceased	O
in	O
1997	O
.	O
</s>
<s>
Directory	B-Application
Opus	I-Application
is	O
still	O
being	O
actively	O
developed	O
and	O
sold	O
for	O
the	O
Microsoft	B-Application
Windows	I-Application
operating	I-Application
system	I-Application
by	O
GPSoftware	O
and	O
there	O
are	O
open	O
source	O
releases	O
of	O
Directory	B-Application
Opus	I-Application
4	O
and	O
5	O
for	O
Amiga	B-Device
.	O
</s>
<s>
Directory	B-Application
Opus	I-Application
was	O
originally	O
developed	O
by	O
,	O
and	O
is	O
still	O
written	O
by	O
,	O
Australian	O
Jonathan	B-Application
Potter	I-Application
.	O
</s>
<s>
Until	O
1994	O
,	O
it	O
was	O
published	O
by	O
well-known	O
Amiga	B-Device
software	O
company	O
Inovatronics	O
,	O
when	O
Potter	O
joined	O
with	O
Greg	O
Perry	O
and	O
the	O
Australian-based	O
GPSoftware	O
to	O
continue	O
its	O
development	O
,	O
and	O
has	O
since	O
been	O
published	O
by	O
GPSoftware	O
.	O
</s>
<s>
Directory	B-Application
Opus	I-Application
has	O
evolved	O
since	O
its	O
first	O
release	O
in	O
1990	O
as	O
a	O
basic	O
two-panel	O
file	B-Application
manager	I-Application
.	O
</s>
<s>
Internal	O
handling	O
of	O
ZIP	B-General_Concept
,	O
RAR	O
,	O
7Zip	B-Language
and	O
other	O
archive	O
formats	O
(	O
browse	O
them	O
like	O
folders	O
)	O
.	O
</s>
<s>
Internal	O
FTP	B-Protocol
handling	O
,	O
including	O
(	O
for	O
a	O
small	O
extra	O
fee	O
)	O
advanced	O
FTP	B-Protocol
and	O
SSH	B-Protocol
(	O
browse	O
these	O
like	O
folders	O
also	O
)	O
.	O
</s>
<s>
Internal	O
MTP	B-Protocol
handling	O
for	O
portable	O
devices	O
like	O
phones	O
and	O
cameras	O
.	O
</s>
<s>
Powerful	O
file	O
selection	O
and	O
renaming	O
tools	O
,	O
with	O
advanced	O
regex	B-Language
.	O
</s>
<s>
The	O
full	O
version	O
of	O
Magellan	O
II	O
is	O
included	O
for	O
free	O
with	O
AmiKit	B-Device
package	O
.	O
</s>
<s>
GPSoftware	O
released	O
the	O
older	O
Amiga	B-Device
Directory	B-Application
Opus	I-Application
4	O
source	O
code	O
in	O
2000	O
as	O
open-source	B-Application
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
AmigaOS4	B-Application
,	O
AROS	B-Application
and	O
MorphOS	B-Operating_System
ports	O
of	O
this	O
version	O
were	O
made	O
available	O
.	O
</s>
<s>
Magellan	O
II	O
was	O
released	O
as	O
open	O
source	O
under	O
the	O
AROS	B-License
Public	I-License
License	I-License
in	O
December	O
2012	O
.	O
</s>
<s>
The	O
open	O
source	O
'	O
Worker	O
 '	O
file	B-Application
manager	I-Application
is	O
heavily	O
inspired	O
by	O
the	O
Directory	B-Application
Opus	I-Application
4	O
series	O
.	O
</s>
