<s>
K9Copy	B-Language
is	O
a	O
free	B-License
and	I-License
open-source	I-License
DVD	O
backup	B-Protocol
and	O
DVD	O
authoring	O
program	B-Application
for	O
Unix-like	B-Operating_System
operating	I-Operating_System
systems	I-Operating_System
such	O
as	O
Linux	B-Application
and	O
BSD	B-Operating_System
.	O
</s>
<s>
It	O
is	O
licensed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
K9Copy	B-Language
facilitates	O
several	O
methods	O
for	O
backing	B-Protocol
up	I-Protocol
a	O
DVD	O
and	O
uses	O
libdvdcss	B-Language
to	O
circumvent	O
CSS	B-Algorithm
copy	B-Application
protection	I-Application
if	O
installed	O
.	O
</s>
<s>
The	O
software	O
enables	O
direct	O
backup	B-Protocol
of	O
a	O
single	O
layer	O
DVD-5	O
provided	O
the	O
user	O
's	O
computer	O
has	O
a	O
DVD	O
recorder	O
.	O
</s>
<s>
Likewise	O
,	O
direct	O
backup	B-Protocol
of	O
a	O
dual	O
layer	O
DVD-9	O
is	O
possible	O
with	O
a	O
dual	O
layer	O
DVD	O
recorder	O
.	O
</s>
<s>
K9Copy	B-Language
is	O
able	O
to	O
fit	O
the	O
contents	O
of	O
a	O
dual	O
layer	O
DVD-9	O
onto	O
a	O
single	O
layer	O
DVD-5	O
.	O
</s>
<s>
All	O
content	O
selected	O
for	O
backup	B-Protocol
is	O
compressed	B-General_Concept
to	O
a	O
configurable	O
target	O
size	B-General_Concept
(	O
4400	O
MB	O
by	O
default	O
)	O
and	O
stored	O
on	O
the	O
user	O
's	O
hard	B-Device
drive	I-Device
as	O
either	O
an	O
ISO	B-Application
image	B-Application
file	B-Operating_System
or	O
a	O
DVD	O
VIDEO	O
TS	O
folder	O
.	O
</s>
<s>
K9Copy	B-Language
can	O
either	O
transfer	O
the	O
backup	B-Protocol
data	O
to	O
blank	O
DVD±R	O
media	O
itself	O
or	O
utilize	O
external	O
DVD	O
authoring	O
software	O
such	O
as	O
K3b	B-Language
for	O
this	O
task	O
.	O
</s>
<s>
Furthermore	O
,	O
an	O
ISO	B-Application
image	B-Application
file	B-Operating_System
produced	O
by	O
K9Copy	B-Language
can	O
be	O
recorded	O
to	O
DVD	O
by	O
any	O
software	O
on	O
any	O
platform	B-Device
capable	O
of	O
recording	O
ISO	B-Application
images	O
to	O
disc	O
.	O
</s>
<s>
Functionality	O
for	O
backing	B-Protocol
up	I-Protocol
a	O
DVD	O
to	O
a	O
video	O
file	B-Operating_System
(	O
such	O
as	O
a	O
MPEG-4-encoded	O
MKV-file	O
)	O
rather	O
than	O
a	O
disc	O
also	O
exists	O
in	O
K9Copy	B-Language
.	O
</s>
<s>
The	O
interface	O
allows	O
the	O
user	O
to	O
select	O
the	O
preferred	O
encoder	B-General_Concept
(	O
either	O
MEncoder	B-Language
or	O
FFmpeg	B-Library
)	O
and	O
codec	B-General_Concept
for	O
video	O
and	O
audio	O
compression	O
as	O
well	O
as	O
a	O
target	O
file	B-General_Concept
size	I-General_Concept
or	O
bit	O
rate	O
for	O
the	O
resulting	O
file	B-Operating_System
.	O
</s>
<s>
K9Copy	B-Language
includes	O
basic	O
DVD	O
authoring	O
capabilities	O
.	O
</s>
<s>
Development	O
was	O
resumed	O
in	O
2014	O
,	O
under	O
the	O
project	O
listing	O
of	O
K9copy-reloaded	O
at	O
Sourceforge.net,	O
by	O
a	O
new	O
developer	O
after	O
the	O
initial	O
development	O
of	O
K9Copy	B-Language
was	O
stopped	O
in	O
2011	O
with	O
the	O
author	O
citing	O
the	O
fragmentation	O
of	O
Linux	B-Application
as	O
a	O
major	O
issue	O
.	O
</s>
