<s>
The	O
Super	B-Device
NES	I-Device
CD-ROM	I-Device
System	O
(	O
commonly	O
shortened	O
as	O
the	O
SNES-CD	B-Device
)	O
,	O
known	O
as	O
the	O
Super	B-Device
Famicom	I-Device
CD-ROM	I-Device
Adapter	O
in	O
Japan	O
,	O
is	O
an	O
unreleased	O
add-on	O
for	O
the	O
Super	B-Application
Nintendo	I-Application
Entertainment	I-Application
System	I-Application
(	O
SNES	B-Application
)	O
video	B-Application
game	I-Application
console	I-Application
.	O
</s>
<s>
It	O
built	O
upon	O
the	O
functionality	O
of	O
the	O
cartridge-based	O
SNES	B-Application
by	O
adding	O
support	O
for	O
a	O
CD-ROM-based	O
format	O
known	O
as	O
Super	B-Device
Disc	I-Device
.	O
</s>
<s>
The	O
SNES-CD	B-Device
was	O
developed	O
in	O
a	O
joint	O
venture	O
between	O
Nintendo	O
and	O
Sony	O
.	O
</s>
<s>
As	O
well	O
as	O
the	O
SNES	B-Application
add-on	O
,	O
Sony	O
planned	O
to	O
release	O
it	O
as	O
a	O
hybrid	O
console	O
,	O
the	O
PlayStation	B-Device
,	O
similar	O
to	O
Sharp	O
's	O
Twin	B-Device
Famicom	I-Device
and	O
NEC	O
's	O
TurboDuo	B-General_Concept
.	O
</s>
<s>
Another	O
partnership	O
with	O
Philips	O
yielded	O
a	O
few	O
Nintendo-themed	O
games	O
for	O
the	O
CD-i	B-Device
platform	O
instead	O
of	O
the	O
SNES-CD	B-Device
.	O
</s>
<s>
After	O
the	O
SNES-CD	B-Device
was	O
canceled	O
,	O
Sony	O
developed	O
its	O
own	O
console	O
using	O
the	O
PlayStation	B-Device
name	O
.	O
</s>
<s>
The	O
first	O
PlayStation	B-Device
console	I-Device
became	O
the	O
chief	O
competitor	O
of	O
Nintendo	O
's	O
next	O
console	O
,	O
the	O
Nintendo	B-Operating_System
64	I-Operating_System
.	O
</s>
<s>
Sony	O
engineer	O
Ken	O
Kutaragi	O
became	O
interested	O
in	O
working	O
with	O
video	O
games	O
after	O
seeing	O
his	O
daughter	O
play	O
games	O
on	O
Nintendo	O
's	O
Famicom	O
video	B-Application
game	I-Application
console	I-Application
.	O
</s>
<s>
He	O
took	O
on	O
a	O
contract	O
at	O
Sony	O
for	O
developing	O
hardware	O
that	O
would	O
drive	O
the	O
audio	O
subsystem	O
of	O
Nintendo	O
's	O
next	O
console	O
,	O
the	O
Super	B-Application
NES	I-Application
.	O
</s>
<s>
The	O
success	O
of	O
the	O
project	O
spurred	O
Nintendo	O
to	O
enter	O
into	O
a	O
partnership	O
with	O
Sony	O
to	O
develop	O
both	O
a	O
CD-ROM	B-Device
add-on	O
for	O
the	O
Super	B-Application
NES	I-Application
and	O
a	O
Sony-branded	O
console	O
that	O
would	O
play	O
both	O
SNES	B-Application
cartridges	B-Protocol
,	O
as	O
well	O
as	O
games	O
released	O
for	O
the	O
new	O
Super	B-Device
Disc	I-Device
format	O
.	O
</s>
<s>
Development	O
of	O
the	O
format	O
started	O
in	O
1988	O
,	O
when	O
Nintendo	O
signed	O
a	O
contract	O
with	O
Sony	O
to	O
produce	O
a	O
CD-ROM	B-Device
add-on	O
for	O
the	O
SNES	B-Application
.	O
</s>
<s>
The	O
system	O
was	O
to	O
be	O
compatible	O
with	O
existing	O
SNES	B-Application
games	O
as	O
well	O
as	O
games	O
released	O
for	O
the	O
Super	B-Device
Disc	I-Device
format	O
.	O
</s>
<s>
Under	O
their	O
agreement	O
,	O
Sony	O
would	O
develop	O
and	O
retain	O
control	O
over	O
the	O
Super	B-Device
Disc	I-Device
format	O
,	O
with	O
Nintendo	O
thus	O
effectively	O
ceding	O
a	O
large	O
amount	O
of	O
control	O
of	O
software	O
licensing	O
to	O
Sony	O
.	O
</s>
<s>
Nintendo	O
president	O
Hiroshi	O
Yamauchi	O
was	O
already	O
wary	O
of	O
Sony	O
at	O
this	O
point	O
and	O
deemed	O
it	O
unacceptable	O
,	O
as	O
Sony	O
was	O
the	O
sole	O
provider	O
of	O
the	O
audio	O
chip	O
,	O
the	O
S-SMP	O
,	O
used	O
in	O
the	O
SNES	B-Application
and	O
required	O
developers	O
to	O
pay	O
for	O
an	O
expensive	O
development	O
tool	O
from	O
Sony	O
.	O
</s>
<s>
At	O
the	O
June	O
1991	O
Consumer	O
Electronics	O
Show	O
,	O
Sony	O
announced	O
its	O
SNES-compatible	O
cartridge/CD	O
console	O
,	O
the	O
PlayStation	B-Device
.	O
</s>
<s>
While	O
Nintendo	O
and	O
Sony	O
attempted	O
to	O
resolve	O
their	O
differences	O
,	O
between	O
two	O
and	O
three	O
hundred	O
prototypes	O
of	O
the	O
PlayStation	B-Device
were	O
created	O
,	O
and	O
software	O
for	O
the	O
system	O
was	O
being	O
developed	O
.	O
</s>
<s>
In	O
1992	O
,	O
a	O
deal	O
was	O
reached	O
allowing	O
Sony	O
to	O
produce	O
SNES-compatible	O
hardware	O
,	O
with	O
Nintendo	O
retaining	O
control	O
and	O
profit	O
over	O
the	O
games	O
.	O
</s>
<s>
By	O
the	O
next	O
year	O
,	O
Sony	O
had	O
dropped	O
further	O
development	O
of	O
the	O
Super	B-Device
NES	I-Device
CD-ROM	I-Device
to	O
develop	O
its	O
own	O
console	O
for	O
the	O
next	B-Application
generation	I-Application
,	O
the	O
PlayStation	B-Device
.	O
</s>
<s>
In	O
November	O
2015	O
,	O
it	O
was	O
reported	O
that	O
one	O
of	O
the	O
original	O
Nintendo	B-Device
PlayStation	I-Device
prototypes	O
had	O
been	O
found	O
.	O
</s>
<s>
The	O
system	O
was	O
later	O
confirmed	O
as	O
operational	O
and	O
the	O
unit	O
plays	O
Super	B-Application
Famicom	I-Application
cartridges	B-Protocol
as	O
well	O
as	O
the	O
test	O
cartridge	B-Protocol
that	O
accompanied	O
the	O
unit	O
,	O
although	O
the	O
audio	O
output	O
and	O
CD	O
drive	O
were	O
non-functional	O
.	O
</s>
<s>
The	O
prototype	O
came	O
with	O
a	O
Sony/PlayStation	O
-branded	O
version	O
of	O
the	O
standard	O
Super	B-Application
Famicom	I-Application
controller	O
(	O
model	O
number	O
SHVC-005	O
)	O
.	O
</s>
<s>
In	O
March	O
2016	O
,	O
retro-gaming	O
website	O
RetroCollect	O
reported	O
that	O
they	O
(	O
and	O
influential	O
members	O
of	O
online	O
emulation	B-Application
communities	O
)	O
had	O
received	O
(	O
from	O
an	O
anonymous	O
source	O
)	O
a	O
functional	O
disc	O
boot	B-General_Concept
ROM	I-General_Concept
for	O
the	O
SNES-CD	B-Device
.	O
</s>
<s>
Heckendorn	O
said	O
the	O
system	O
would	O
have	O
probably	O
been	O
as	O
powerful	O
as	O
a	O
standard	O
Super	B-Application
NES	I-Application
,	O
but	O
not	O
as	O
powerful	O
as	O
the	O
Sega	B-Device
CD	I-Device
.	O
</s>
<s>
The	O
standalone	O
unit	O
has	O
the	O
following	O
connectors	O
:	O
two	O
Super	B-Application
NES	I-Application
controller	O
ports	O
,	O
a	O
cartridge	B-Protocol
slot	O
,	O
a	O
dual-speed	O
CD-ROM	B-Device
drive	O
,	O
RCA	B-Protocol
composite	O
jacks	O
,	O
S-Video	O
,	O
RFU	O
DC	O
OUT	O
(	O
similar	O
to	O
the	O
PlayStation	B-Device
SCPH-1001	O
)	O
,	O
a	O
proprietary	O
multi-out	O
AV	O
output	O
port	O
(	O
the	O
same	O
one	O
featured	O
on	O
the	O
Super	B-Application
NES	I-Application
,	O
Nintendo	B-Operating_System
64	I-Operating_System
,	O
and	O
GameCube	B-Application
)	O
,	O
headphone	O
jack	O
on	O
the	O
front	O
,	O
a	O
serial	O
port	O
labelled	O
"	O
NEXT	O
"	O
(	O
probably	O
for	O
debugging	O
)	O
,	O
and	O
one	O
expansion	O
port	O
under	O
the	O
unit	O
.	O
</s>
<s>
This	O
contract	O
provisioned	O
Philips	O
with	O
the	O
right	O
to	O
feature	O
Nintendo	O
's	O
characters	O
in	O
a	O
few	O
games	O
for	O
its	O
CD-i	B-Device
multimedia	O
device	O
,	O
but	O
never	O
resulted	O
in	O
a	O
CD-ROM	B-Device
add-on	O
for	O
the	O
SNES	B-Application
.	O
</s>
<s>
Witnessing	O
the	O
poor	O
reception	O
of	O
the	O
Sega	B-Device
CD	I-Device
,	O
Nintendo	O
cancelled	O
plans	O
for	O
the	O
add-on	O
.	O
</s>
<s>
The	O
Nintendo-themed	O
CD-i	B-Device
games	O
were	O
very	O
poorly	O
received	O
,	O
and	O
the	O
CD-i	B-Device
itself	O
is	O
considered	O
a	O
commercial	O
failure	O
.	O
</s>
<s>
The	O
main	O
game	O
in	O
development	O
for	O
the	O
SNES-CD	B-Device
platform	O
launch	O
was	O
Square	O
's	O
Secret	O
of	O
Mana	O
,	O
whose	O
planned	O
content	O
was	O
cut	O
down	O
to	O
the	O
size	O
suitable	O
for	O
cartridge	B-Protocol
and	O
released	O
on	O
that	O
medium	O
instead	O
.	O
</s>
<s>
Kutaragi	O
and	O
Sony	O
continued	O
to	O
develop	O
their	O
own	O
console	O
and	O
released	O
the	O
PlayStation	B-Device
in	O
December	O
1994	O
in	O
Japan	O
and	O
September	O
in	O
North	O
America	O
and	O
Europe	O
the	O
following	O
year	O
.	O
</s>
<s>
The	O
CD-based	O
console	O
successfully	O
competed	O
with	O
Nintendo	O
's	O
cartridge-based	O
Nintendo	B-Operating_System
64	I-Operating_System
and	O
other	O
CD-based	O
console	O
systems	O
such	O
as	O
the	O
Fujitsu	B-Device
FM	I-Device
Towns	I-Device
Marty	I-Device
,	O
the	O
NEC	B-Device
PC-FX	I-Device
,	O
the	O
SNK	B-Device
Neo	I-Device
Geo	I-Device
CD	I-Device
,	O
the	O
Panasonic	B-Device
3DO	I-Device
Interactive	O
Multiplayer	O
and	O
the	O
Sega	B-Device
Saturn	I-Device
,	O
causing	O
it	O
to	O
become	O
the	O
console	O
leader	O
due	O
to	O
its	O
success	O
.	O
</s>
<s>
Nintendo	O
would	O
not	O
release	O
an	O
optical	O
disc-based	O
console	O
of	O
its	O
own	O
until	O
the	O
release	O
of	O
the	O
GameCube	B-Application
in	O
2001	O
.	O
</s>
