<s>
Nintendo	B-Device
optical	I-Device
discs	I-Device
are	O
physical	O
media	O
used	O
to	O
distribute	O
video	O
games	O
on	O
three	O
of	O
Nintendo	O
's	O
consoles	O
that	O
followed	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
.	O
</s>
<s>
These	O
are	O
the	O
GameCube	B-Application
Game	O
Disc	O
,	O
Wii	B-Operating_System
Optical	B-Device
Disc	I-Device
,	O
and	O
Wii	B-Device
U	I-Device
Optical	B-Device
Disc	I-Device
.	O
</s>
<s>
The	O
physical	O
size	O
of	O
a	O
GameCube	B-Application
Game	O
Disc	O
is	O
that	O
of	O
a	O
miniDVD	B-Device
;	O
the	B-Operating_System
Wii	I-Operating_System
is	O
based	O
on	O
DVD	O
format	O
,	O
and	O
Wii	B-Device
U	I-Device
Optical	B-Device
Discs	I-Device
are	O
based	O
on	O
Blu-ray	O
format	O
.	O
</s>
<s>
To	O
maintain	O
backward	B-General_Concept
compatibility	I-General_Concept
between	O
generations	O
of	O
game	O
consoles	O
,	O
GameCube	B-Application
discs	O
are	O
compatible	O
with	O
the	O
first	O
model	O
of	O
the	B-Operating_System
Wii	I-Operating_System
,	O
and	O
Wii	B-Operating_System
Optical	B-Device
Discs	I-Device
are	O
compatible	O
with	O
the	B-Operating_System
Wii	I-Operating_System
U	O
.	O
</s>
<s>
In	O
2017	O
,	O
Nintendo	O
discontinued	O
disc-based	O
media	O
in	O
favor	O
of	O
game	B-Device
cards	I-Device
for	O
the	B-Operating_System
Wii	I-Operating_System
U	I-Device
's	O
successor	O
,	O
the	O
Nintendo	B-Application
Switch	I-Application
,	O
although	O
it	O
would	O
license	O
several	O
more	O
physically	O
released	O
Wii	B-Operating_System
and	O
Wii	B-Device
U	I-Device
games	O
for	O
many	O
more	O
months	O
,	O
with	O
the	O
last	O
one	O
being	O
a	O
port	O
of	O
Shakedown	B-Device
:	I-Device
Hawaii	I-Device
to	O
both	O
consoles	O
in	O
the	O
summer	O
of	O
2020	O
.	O
</s>
<s>
The	O
GameCube	B-Application
Game	O
Disc	O
(	O
DOL-006	O
)	O
is	O
the	O
game	O
medium	O
for	O
the	O
GameCube	B-Application
,	O
created	O
by	O
Matsushita/Panasonic	O
,	O
one	O
of	O
the	O
ten	O
founders	O
of	O
the	O
DVD	O
Forum	O
,	O
and	O
later	O
extended	O
for	O
use	O
in	O
the	O
backward	B-General_Concept
compatibility	I-General_Concept
mode	O
of	O
the	O
first	O
model	O
of	O
Wii	B-Operating_System
.	O
</s>
<s>
The	O
GameCube	B-Application
is	O
Nintendo	O
's	O
first	O
optical	B-Device
disc	I-Device
console	O
,	O
after	O
mainly	O
ROM	B-Protocol
cartridge	I-Protocol
based	O
platforms	O
.	O
</s>
<s>
The	O
GameCube	B-Application
Game	O
Disc	O
is	O
a	O
1.46GB	O
,	O
8cm	O
miniDVD-based	O
technology	O
which	O
reads	O
at	O
a	O
constant	B-Device
angular	I-Device
velocity	I-Device
(	O
CAV	O
)	O
.	O
</s>
<s>
It	O
was	O
chosen	O
by	O
Nintendo	O
to	O
prevent	O
copyright	O
infringement	O
of	O
its	O
games	O
,	O
to	O
reduce	O
manufacturing	O
costs	O
compared	O
to	O
Nintendo	B-Device
64	I-Device
Game	I-Device
Paks	I-Device
,	O
and	O
to	O
avoid	O
licensing	O
fees	O
to	O
the	O
DVD	O
Forum	O
.	O
</s>
<s>
GameCube	B-Application
Game	O
Discs	O
do	O
not	O
use	O
the	O
Content	B-Algorithm
Scramble	I-Algorithm
System	I-Algorithm
found	O
on	O
normal	O
DVD-Video	O
discs	O
,	O
as	O
Nintendo	O
was	O
not	O
satisfied	O
with	O
its	O
level	O
of	O
security	O
.	O
</s>
<s>
The	O
GameCube	B-Application
is	O
not	O
able	O
to	O
be	O
used	O
as	O
a	O
general	O
DVD	O
player	O
,	O
except	O
for	O
the	O
Panasonic	B-Device
Q	I-Device
which	O
is	O
a	O
uniquely	O
customized	O
GameCube	B-Application
with	O
DVD	O
capability	O
that	O
was	O
released	O
only	O
in	O
Japan	O
.	O
</s>
<s>
Some	O
GameCube	B-Application
games	O
with	O
large	O
amounts	O
of	O
data	O
span	O
two	O
discs	O
,	O
such	O
as	O
Resident	B-Application
Evil	I-Application
4	I-Application
,	O
Baten	B-Application
Kaitos	I-Application
,	O
and	O
Tales	B-Application
of	I-Application
Symphonia	I-Application
.	O
</s>
<s>
Some	O
multi-platform	O
games	O
that	O
fit	O
on	O
single	O
discs	O
for	O
PlayStation	O
2	O
and	O
Xbox	O
had	O
certain	O
features	O
removed	O
in	O
order	O
to	O
fit	O
on	O
GameCube	B-Application
Game	O
Discs	O
.	O
</s>
<s>
Full-motion	B-Application
video	I-Application
(	O
FMV	O
)	O
scenes	O
and	O
audio	O
clips	O
have	O
higher	O
compression	O
or	O
lower	O
quality	O
to	O
fit	O
on	O
a	O
single	O
disc	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
Optical	B-Device
Disc	I-Device
(	O
RVL-006	O
)	O
is	O
the	O
physical	O
game	O
medium	O
for	O
the	B-Operating_System
Wii	I-Operating_System
,	O
created	O
by	O
Panasonic	O
.	O
</s>
<s>
Nintendo	O
extended	O
its	O
proprietary	O
technology	O
to	O
use	O
a	O
full	O
size	O
12cm	O
,	O
4.7/8.54GB	O
DVD-based	O
disc	O
,	O
retaining	O
the	O
benefits	O
of	O
the	O
GameCube	B-Application
Game	O
Disc	O
,	O
and	O
adding	O
the	O
standard	O
capacity	O
of	O
a	O
double-layer	O
DVD-ROM	O
.	O
</s>
<s>
Wii	B-Operating_System
Discs	O
always	O
include	O
a	O
partition	O
with	O
files	O
to	O
update	O
the	B-Operating_System
Wii	I-Operating_System
system	O
software	O
,	O
which	O
are	O
installed	O
before	O
starting	O
the	O
game	O
if	O
needed	O
.	O
</s>
<s>
For	O
the	O
same	O
reasons	O
as	O
GameCube	B-Application
,	O
Wii	B-Operating_System
cannot	O
play	O
DVD	O
movies	O
or	O
CDs	O
.	O
</s>
<s>
However	O
,	O
earlier	O
Wiis	B-Operating_System
can	O
play	O
DVDs	O
using	O
homebrew	B-Application
such	O
as	O
WiiMC	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
can	O
read	O
dual-layer	O
discs	O
,	O
and	O
all	O
games	O
are	O
single-layer	O
prior	O
to	O
the	O
release	O
of	O
Super	B-Application
Smash	I-Application
Bros	I-Application
.	I-Application
Brawl	I-Application
.	O
</s>
<s>
Upon	O
that	O
release	O
,	O
Nintendo	O
admitted	O
that	O
some	O
Wii	B-Operating_System
systems	I-Operating_System
may	O
have	O
trouble	O
reading	O
dual-layer	O
discs	O
due	O
to	O
a	O
dirty	O
laser	O
lens	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
U	O
Optical	B-Device
Disc	I-Device
(	O
WUP-006	O
)	O
is	O
the	O
retail	O
physical	O
game	O
medium	O
for	O
the	B-Operating_System
Wii	I-Operating_System
U	O
,	O
with	O
a	O
capacity	O
of	O
25GB	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
U	O
system	O
software	O
is	O
backwards	B-General_Concept
compatible	I-General_Concept
with	O
Wii	B-Operating_System
Optical	B-Device
Discs	I-Device
,	O
but	O
not	O
with	O
GameCube	B-Application
game	O
discs	O
.	O
</s>
<s>
The	B-Operating_System
Wii	I-Operating_System
U	O
Optical	B-Device
Discs	I-Device
differ	O
in	O
appearance	O
from	O
most	O
other	O
optical	B-Device
discs	I-Device
in	O
that	O
they	O
have	O
soft	O
,	O
rounded	O
edges	O
.	O
</s>
<s>
It	O
is	O
not	O
clear	O
whether	O
the	B-Operating_System
Wii	I-Operating_System
U	O
Optical	B-Device
Disc	I-Device
is	O
similar	O
in	O
physical	O
design	O
to	O
the	O
Blu-ray	O
physical	O
disc	O
specification	O
.	O
</s>
<s>
Nintendo	O
president	O
Satoru	O
Iwata	O
stated	O
,	O
"	O
Wii	B-Device
U	I-Device
does	O
not	O
have	O
DVD	O
or	O
Blu-ray	O
playback	O
capabilities	O
.	O
</s>
<s>
The	O
reason	O
for	O
that	O
is	O
that	O
we	O
feel	O
that	O
enough	O
people	O
already	O
have	O
devices	O
that	O
are	O
capable	O
of	O
playing	O
DVDs	O
and	O
Blu-ray	O
,	O
such	O
that	O
it	O
did	O
n't	O
warrant	O
the	O
cost	O
involved	O
to	O
build	O
that	O
functionality	O
into	O
the	B-Operating_System
Wii	I-Operating_System
U	O
console	O
because	O
of	O
the	O
patents	O
related	O
to	O
those	O
technologies	O
"	O
.	O
</s>
<s>
Like	O
with	O
the	O
GameCube	B-Application
and	O
Wii	B-Operating_System
optical	B-Device
discs	I-Device
,	O
it	O
was	O
chosen	O
by	O
Nintendo	O
to	O
prevent	O
copyright	O
infringement	O
of	O
games	O
,	O
to	O
reduce	O
cost	O
by	O
avoiding	O
licensing	O
fees	O
to	O
the	O
Blu-ray	O
Disc	O
Association	O
(	O
BDA	O
)	O
,	O
and	O
to	O
reduce	O
loading	B-Operating_System
times	O
.	O
</s>
<s>
Each	O
Nintendo	B-Device
optical	I-Device
disc	I-Device
contains	O
a	O
burst	O
cutting	O
area	O
(	O
BCA	O
)	O
mark	O
,	O
a	O
type	O
of	O
barcode	O
that	O
is	O
written	O
to	O
the	O
disc	O
with	O
a	O
YAG	O
laser	O
.	O
</s>
<s>
Wii	B-Device
U	I-Device
discs	O
do	O
not	O
use	O
BCA	O
.	O
</s>
<s>
It	O
is	O
different	O
from	O
the	O
IFPI	O
mark	O
that	O
is	O
on	O
all	O
optical	B-Device
discs	I-Device
.	O
</s>
<s>
New	B-Application
Super	I-Application
Mario	I-Application
Bros	I-Application
.	I-Application
Wii	I-Application
was	O
the	O
first	O
Wii	B-Operating_System
game	O
to	O
use	O
the	O
BCA	O
as	O
part	O
of	O
an	O
anti-piracy	O
check	O
;	O
however	O
it	O
was	O
cracked	O
.	O
</s>
