<s>
The	O
Sega	B-Device
Card	I-Device
,	O
known	O
in	O
Japan	O
as	O
Sega	O
My	B-Device
Card	I-Device
,	O
is	O
a	O
memory	B-Device
card	I-Device
format	O
used	O
as	O
game	O
storage	O
for	O
the	O
SG-1000/SC	O
-3000	O
and	O
the	O
Mark	O
III/Master	O
System	O
.	O
</s>
<s>
While	O
substantially	O
cheaper	O
to	O
produce	O
than	O
cartridges	B-Protocol
,	O
the	O
storage	O
limitations	O
of	O
the	O
format	O
resulted	O
in	O
Sega	O
exclusively	O
distributing	O
games	O
on	O
cartridges	B-Protocol
.	O
</s>
<s>
Despite	O
the	O
failure	O
of	O
the	O
Sega	B-Device
Card	I-Device
,	O
NEC	O
found	O
more	O
success	O
with	O
its	O
own	O
memory	B-Device
card	I-Device
format	O
,	O
the	O
HuCard	B-Device
,	O
which	O
was	O
the	O
primary	O
storage	O
medium	O
for	O
its	O
PC	B-General_Concept
Engine	I-General_Concept
game	O
console	O
.	O
</s>
<s>
The	O
format	O
was	O
originally	O
released	O
in	O
1983	O
in	O
the	O
Japanese	O
market	O
,	O
under	O
the	O
name	O
My	B-Device
Card	I-Device
.	O
</s>
<s>
Initially	O
it	O
was	O
for	O
use	O
with	O
the	O
SC-3000	O
and	O
the	O
SG-1000	B-Operating_System
series	O
of	O
consoles	O
via	O
an	O
optional	O
accessory	O
,	O
the	O
Card	O
Catcher	O
.	O
</s>
<s>
The	O
intention	O
of	O
the	O
format	O
was	O
to	O
provide	O
cheaper	O
distribution	O
means	O
than	O
the	O
more	O
conventional	O
game	B-Protocol
cartridges	I-Protocol
.	O
</s>
<s>
The	O
Sega	B-Device
Card	I-Device
product	O
consists	O
of	O
less	O
material	O
and	O
has	O
smaller	O
packaging	O
.	O
</s>
<s>
Sega	B-Device
Cards	I-Device
,	O
while	O
cheaper	O
than	O
cartridges	B-Protocol
,	O
have	O
significantly	O
smaller	O
storage	O
capacities	O
(	O
4	O
to	O
32	O
KB	O
of	O
ROM	O
)	O
,	O
than	O
contemporary	O
cartridges	B-Protocol
,	O
which	O
have	O
16	O
to	O
512	O
KB	O
of	O
ROM	O
.	O
</s>
<s>
The	O
final	O
release	O
,	O
in	O
Japan	O
,	O
was	O
Woody	B-Application
Pop	I-Application
,	O
released	O
on	O
15	O
March	O
1987	O
.	O
</s>
<s>
Overall	O
,	O
Sega	O
published	O
only	O
a	O
dozen	O
games	O
in	O
the	O
format	O
for	O
the	O
Mark	O
III/Master	O
System	O
(	O
in	O
1986	O
–	O
1987	O
)	O
before	O
moving	O
on	O
to	O
producing	O
solely	O
game	B-Protocol
cartridges	I-Protocol
.	O
</s>
<s>
The	O
Master	O
System	O
II	O
,	O
a	O
revised	O
model	O
of	O
the	O
console	O
,	O
has	O
no	O
Sega	B-Device
Card	I-Device
support	O
,	O
and	O
all	O
the	O
Sega	B-Device
Card	I-Device
games	O
released	O
in	O
Europe	O
were	O
eventually	O
re-released	O
in	O
cartridge	B-Protocol
format	O
,	O
reflecting	O
Sega	O
's	O
move	O
away	O
from	O
cards	O
.	O
</s>
<s>
Similar	O
but	O
incompatible	O
formats	O
,	O
also	O
manufactured	O
by	O
Mitsubishi	O
Plastics	O
,	O
are	O
used	O
by	O
other	O
computers	O
and	O
consoles	O
:	O
the	O
Bee	O
Card	O
on	O
the	O
MSX	B-Operating_System
,	O
and	O
the	O
HuCard	B-Device
on	O
the	O
NEC	B-General_Concept
PC	I-General_Concept
Engine	I-General_Concept
.	O
</s>
<s>
The	O
original	O
My	B-Device
Card	I-Device
was	O
released	O
for	O
Sega	O
's	O
SG-1000	B-Operating_System
console	O
(	O
SG-1000	B-Operating_System
and	O
SG-1000	B-Operating_System
II	I-Operating_System
)	O
and	O
SC-3000	O
series	O
(	O
SC-3000	O
and	O
SC-3000H	O
)	O
.	O
</s>
<s>
The	O
cards	O
are	O
also	O
compatible	O
with	O
the	O
Tsukuda	O
Original	O
Othello	O
MultiVision	O
,	O
an	O
SG-1000	B-Operating_System
clone	O
and	O
the	O
SG-1000-compatible	O
Pioneer	O
SD-G5	O
peripheral	O
.	O
</s>
<s>
The	O
Mark	O
III	O
is	O
also	O
backward	B-General_Concept
compatible	I-General_Concept
with	O
SG-1000	B-Operating_System
My	B-Device
Cards	I-Device
.	O
</s>
<s>
The	O
third	O
version	O
of	O
the	O
card	O
,	O
called	O
the	O
"	O
Sega	B-Device
Card	I-Device
"	O
was	O
released	O
for	O
the	O
Master	O
System	O
,	O
the	O
international	O
version	O
of	O
the	O
Mark	O
III	O
.	O
</s>
<s>
The	O
Power	O
Base	O
Converter	O
has	O
a	O
card	O
slot	O
allowing	O
for	O
use	O
of	O
the	O
cards	O
on	O
the	O
Mega	B-Operating_System
Drive/Genesis	I-Operating_System
.	O
</s>
<s>
The	O
final	O
version	O
of	O
the	O
format	O
was	O
the	O
My	B-Device
Card	I-Device
EP	O
,	O
a	O
rewritable	O
version	O
that	O
was	O
test	O
marketed	O
only	O
in	O
Japan	O
.	O
</s>
<s>
The	O
Card	O
Catcher	O
peripheral	O
allows	O
for	O
use	O
of	O
the	O
cards	O
with	O
the	O
SG-1000	B-Operating_System
.	O
</s>
<s>
A	O
limited	O
edition	O
version	O
of	O
the	O
Card	O
Catcher	O
is	O
bundled	O
with	O
two	O
games	O
,	O
Zoom	B-Application
909	I-Application
and	O
Dragon	O
Wang	O
.	O
</s>
<s>
The	O
original	O
SG-1000	B-Operating_System
models	O
(	O
SG-1000	B-Operating_System
and	O
SG-1000	B-Operating_System
II	I-Operating_System
)	O
and	O
the	O
SC-3000	O
series	O
(	O
SC-3000	O
and	O
SC-3000H	O
)	O
,	O
along	O
with	O
compatible	O
hardware	O
(	O
the	O
Othello	O
Multivision	O
Series	O
and	O
the	O
Pioneer	O
SD-G5	O
)	O
do	O
not	O
have	O
built-in	O
card	O
slots	O
,	O
as	O
they	O
were	O
released	O
before	O
the	O
original	O
My	B-Device
Card	I-Device
.	O
</s>
<s>
Instead	O
,	O
they	O
require	O
the	O
Card	O
Catcher	O
to	O
be	O
placed	O
in	O
the	O
cartridge	B-Protocol
slot	O
to	O
use	O
card-based	O
games	O
.	O
</s>
<s>
Card	O
releases	O
are	O
distinguished	O
from	O
cartridge	B-Protocol
releases	O
by	O
their	O
part	O
numbers	O
.	O
</s>
<s>
Standard	O
SG-1000	B-Operating_System
releases	O
sport	O
a	O
4-digit	O
number	O
,	O
G-10XX	O
,	O
with	O
a	O
unique	O
two-digit	O
number	O
at	O
the	O
end	O
.	O
</s>
<s>
The	O
numbering	O
from	O
the	O
cartridge	B-Protocol
releases	O
was	O
continued	O
with	O
the	O
card	O
releases	O
though	O
,	O
with	O
subsequent	O
card	O
releases	O
being	O
given	O
two-digit	O
numbers	O
that	O
are	O
higher	O
than	O
those	O
from	O
cartridge	B-Protocol
releases	O
.	O
</s>
<s>
Games	O
released	O
both	O
on	O
cartridges	B-Protocol
and	O
cards	O
retain	O
the	O
unique	O
two	O
digit	O
number	O
with	O
the	O
"	O
10	O
"	O
removed	O
from	O
the	O
part	O
number	O
(	O
e.g.	O
</s>
<s>
The	O
cartridge	B-Protocol
version	O
of	O
Golf	O
Champion	O
is	O
given	O
the	O
number	O
G-1005	O
while	O
the	O
My	B-Device
Card	I-Device
release	O
was	O
given	O
the	O
number	O
C-05	O
)	O
.	O
</s>
<s>
The	O
successor	O
to	O
the	O
SG-1000	B-Operating_System
,	O
the	O
Sega	O
Mark	O
III	O
was	O
released	O
in	O
October	O
1985	O
and	O
is	O
backward	B-General_Concept
compatible	I-General_Concept
with	O
both	O
SG-1000	B-Operating_System
cartridges	B-Protocol
and	O
My	B-Device
Cards	I-Device
.	O
</s>
<s>
The	O
subsequent	O
international	O
version	O
of	O
the	O
Mark	O
III	O
,	O
the	O
Master	O
System	O
retains	O
compatibility	O
with	O
My	B-Device
Card	I-Device
software	O
,	O
though	O
Japanese	O
software	O
is	O
incompatible	O
on	O
non-Japanese	O
hardware	O
.	O
</s>
<s>
However	O
,	O
the	O
Power	O
Base	O
Converter	O
,	O
which	O
allows	O
Master	O
System	O
software	O
to	O
be	O
run	O
on	O
Sega	O
's	O
Mega	B-Operating_System
Drive/Genesis	I-Operating_System
only	O
retains	O
compatibility	O
with	O
Mark	O
III/Master	O
System	O
My	B-Device
Cards	I-Device
.	O
</s>
<s>
In	O
New	O
Zealand	O
,	O
Grandstand	O
Leisure	O
Limited	O
released	O
both	O
the	O
Card	O
Catcher	O
and	O
the	O
following	O
My	B-Device
Card	I-Device
games	O
:	O
</s>
<s>
The	O
successor	O
to	O
the	O
SG-1000	B-Operating_System
card	O
format	O
is	O
the	O
Mark	O
III	O
My	B-Device
Card	I-Device
.	O
</s>
<s>
With	O
the	O
October	O
1985	O
release	O
of	O
the	O
Sega	O
Mark	O
III	O
,	O
all	O
games	O
were	O
initially	O
available	O
as	O
My	B-Device
Cards	I-Device
.	O
</s>
<s>
But	O
with	O
1986	O
's	O
arrival	O
of	O
"	O
Gold	O
Cartridge	B-Protocol
"	O
branded	O
releases	O
,	O
Sega	O
started	O
transitioning	O
to	O
the	O
cartridge	B-Protocol
as	O
the	O
primary	O
distribution	O
media	O
.	O
</s>
<s>
By	O
1987	O
,	O
games	O
had	O
stopped	O
being	O
released	O
in	O
the	O
My	B-Device
Card	I-Device
Mark	O
III	O
format	O
.	O
</s>
<s>
Outside	O
Japan	O
,	O
My	B-Device
Card	I-Device
Mark	O
III	O
was	O
released	O
under	O
the	O
name	O
"	O
Sega	B-Device
Card	I-Device
"	O
,	O
with	O
the	O
1986	O
release	O
of	O
the	O
Western	O
version	O
of	O
Mark	O
III	O
,	O
the	O
Master	O
System	O
.	O
</s>
<s>
The	O
Power	O
Base	O
Converter	O
allows	O
Sega	B-Device
Cards	I-Device
and	O
My	B-Device
Cards	I-Device
to	O
be	O
used	O
with	O
the	O
Mega	B-Operating_System
Drive/Genesis	I-Operating_System
.	O
</s>
<s>
The	O
card	O
format	O
is	O
mostly	O
region	O
locked	O
,	O
preventing	O
non-Japanese	O
hardware	O
from	O
playing	O
Japanese	O
My	B-Device
Cards	I-Device
.	O
</s>
<s>
However	O
,	O
Woody	B-Application
Pop	I-Application
is	O
the	O
only	O
Japanese	O
card	O
release	O
compatible	O
with	O
any	O
system	O
capable	O
of	O
playing	O
My	O
Cards/Sega	O
Cards	O
.	O
</s>
<s>
F-16	O
Fighter	O
(	O
F-16	O
Fighting	O
Falcon	O
in	O
some	O
editions	O
)	O
requires	O
legacy	O
hardware	O
from	O
the	O
SG-1000	B-Operating_System
that	O
is	O
not	O
included	O
in	O
the	O
Mega	B-Operating_System
Drive/Genesis	I-Operating_System
,	O
and	O
is	O
the	O
only	O
Sega	B-Device
Card	I-Device
not	O
compatible	O
with	O
the	O
Power	O
Base	O
Converter	O
.	O
</s>
<s>
In	O
1985	O
,	O
Sega	O
released	O
another	O
version	O
of	O
the	O
card	O
in	O
Japan	O
called	O
the	O
My	B-Device
Card	I-Device
EP	O
(	O
short	O
for	O
EPROM	B-General_Concept
,	O
or	O
UV	B-General_Concept
EPROM	I-General_Concept
)	O
,	O
a	O
rewritable	O
version	O
of	O
the	O
format	O
.	O
</s>
<s>
Sega	O
promoted	O
the	O
My	B-Device
Card	I-Device
EP	O
using	O
flyers	O
and	O
newspaper	O
advertisements	O
and	O
pilot	O
tested	O
it	O
at	O
Tokyo	O
's	O
Tamagawa	O
Takashimaya	O
Futakotamagawa	O
.	O
</s>
<s>
Dealers	O
were	O
to	O
install	O
EPROM	B-General_Concept
rewriting	O
machines	O
at	O
retail	O
locations	O
,	O
while	O
users	O
would	O
bring	O
their	O
card	O
and	O
write	O
other	O
games	O
onto	O
it	O
.	O
</s>
<s>
The	O
back	O
of	O
the	O
cards	O
did	O
not	O
have	O
the	O
silver	O
sticker	O
from	O
standard	O
My	B-Device
Cards	I-Device
.	O
</s>
<s>
Games	O
were	O
released	O
onto	O
the	O
EP	O
format	O
at	O
the	O
same	O
time	O
as	O
they	O
were	O
released	O
onto	O
standard	O
My	B-Device
Cards	I-Device
.	O
</s>
<s>
New	O
My	B-Device
Card	I-Device
EPs	O
came	O
with	O
either	O
Dragon	O
Wang	O
or	O
Star	O
Jacker	O
pre-written	O
on	O
the	O
card	O
,	O
with	O
the	O
below	O
titles	O
available	O
for	O
rewriting	O
.	O
</s>
<s>
Model	O
name	O
My	B-Device
Card	I-Device
My	B-Device
Card	I-Device
Mark	O
III	O
Sega	O
Card(Non-Japanese for My Card Mark III )	O
My	B-Device
Card	I-Device
EP	O
Comment(s )	O
SG-1000(Sega )	O
Requires	O
Card	O
Catcher	O
.	O
</s>
<s>
Sega	O
Mark	O
III(Sega )	O
Master	O
System	O
Japanese	O
My	B-Device
Card	I-Device
games	O
are	O
not	O
supported	O
except	O
for	O
Woody	B-Application
Pop	I-Application
.	O
</s>
<s>
Mega	O
Adapter/Power	O
Base	O
Converter/Master	O
System	O
Converter(Sega )	O
Original	O
My	B-Device
Cards	I-Device
and	O
F-16	O
Fighting	O
Falcon	O
are	O
not	O
supported.Master	O
Gear	O
Converter(Sega )	O
Requires	O
Card	O
Catcher	O
+	O
Mark	O
III	O
to	O
Master	O
System	O
adapter	O
.	O
</s>
<s>
The	O
Sega	O
AI	O
Computer	O
also	O
used	O
Sega	B-Device
Cards	I-Device
,	O
but	O
it	O
is	O
not	O
compatible	O
with	O
any	O
of	O
the	O
cards	O
used	O
in	O
other	O
systems	O
.	O
</s>
