<s>
BlindWrite	B-Application
,	O
the	O
successor	O
to	O
BlindRead	O
,	O
is	O
a	O
computer	B-Application
program	I-Application
that	O
writes	O
to	O
recordable	O
CDs	O
.	O
</s>
<s>
The	O
Blindread	O
software	O
,	O
which	O
reads	O
CDs	O
and	O
writes	O
CD	B-Application
image	I-Application
files	O
,	O
has	O
been	O
discontinued	O
as	O
a	O
separately	O
released	O
product	O
,	O
but	O
BlindRead	O
's	O
code	O
is	O
included	O
in	O
the	O
newer	O
BlindWrite	B-Application
suite	O
of	O
software	O
that	O
also	O
code	O
to	O
control	O
CD	O
writers	O
.	O
</s>
<s>
BlindWrite	B-Application
's	O
most	O
distinctive	O
feature	O
touted	O
over	O
other	O
pre-existing	O
CD	O
writing	O
software	O
was	O
to	O
use	O
the	O
CD	B-Application
images	I-Application
BlindRead	O
made	O
.	O
</s>
<s>
Support	O
for	O
"	O
Sub	O
codes	O
"	O
,	O
also	O
known	O
as	O
"	O
Sub	O
Channel	O
Data	O
"	O
,	O
distinguished	O
the	O
files	O
created	O
with	O
BlindRead	O
from	O
other	O
software	O
that	O
created	O
CD	B-Application
image	I-Application
files	O
.	O
</s>
<s>
The	O
"	O
Sub	O
code	O
"	O
data	O
could	O
be	O
written	O
in	O
*	O
.SUB	O
files	O
added	O
to	O
either	O
of	O
two	O
already-existing	O
popular	O
formats	O
(	O
ISO	B-General_Concept
image	I-General_Concept
and	O
Cue	O
sheet	O
)	O
,	O
or	O
the	O
Sub	O
code	O
data	O
could	O
be	O
written	O
in	O
*	O
.BWS	O
files	O
in	O
BlindRead	O
's	O
native	O
format	O
that	O
consisted	O
of	O
writing	O
a	O
CD	B-Application
image	I-Application
in	O
a	O
group	O
of	O
three	O
files	O
.	O
</s>
<s>
This	O
format	O
,	O
which	O
has	O
become	O
known	O
more	O
widely	O
as	O
the	O
BlindWrite	B-Application
native	O
format	O
(	O
now	O
that	O
BlindRead	O
is	O
not	O
maintained	O
and	O
distributed	O
as	O
a	O
separate	O
product	O
anymore	O
)	O
,	O
has	O
two	O
or	O
three	O
files	O
for	O
a	O
proper	O
image	O
.	O
</s>
<s>
The	O
*	O
.BWT	B-Application
control	O
file	O
is	O
another	O
relatively	O
small	O
file	O
(	O
that	O
may	O
be	O
a	O
very	O
small	O
number	O
of	O
kilobytes	O
when	O
part	O
of	O
a	O
multi-file	O
CD	B-Application
image	I-Application
for	O
a	O
full-sized	O
650MB	O
CD	O
)	O
that	O
is	O
typically	O
the	O
file	O
referred	O
to	O
in	O
the	O
user	O
interfaces	O
of	O
software	O
that	O
supports	O
this	O
format	O
and	O
chooses	O
just	O
one	O
file	O
extension	O
per	O
CD	B-Application
image	I-Application
for	O
the	O
purposes	O
of	O
filename	O
selection	O
.	O
</s>
<s>
(	O
This	O
includes	O
VSO	O
's	O
software	O
and	O
Daemon	B-Application
Tools	I-Application
.	O
)	O
</s>
<s>
BlindWrite	B-Application
version	O
5	O
(	O
released	O
in	O
Q4	O
2003	O
)	O
has	O
been	O
found	O
using	O
new	O
native	O
files	O
that	O
come	O
in	O
pairs	O
.	O
</s>
<s>
The	O
files	O
use	O
the	O
extensions	O
*	O
.B5T	B-Application
(	O
a	O
relatively	O
small	O
file	O
)	O
and	O
*	O
.B5I	O
image	O
files	O
.	O
</s>
<s>
BlindWrite	B-Application
version	O
6	O
(	O
released	O
in	O
Q3	O
2006	O
)	O
also	O
has	O
been	O
found	O
using	O
new	O
native	O
files	O
that	O
come	O
in	O
pairs	O
.	O
</s>
<s>
The	O
files	O
use	O
the	O
extensions	O
*	O
.B6T	B-Application
(	O
a	O
relatively	O
small	O
file	O
)	O
and	O
*	O
.B6I	O
image	O
files	O
.	O
</s>
<s>
The	O
BlindRead	O
format	O
has	O
been	O
supported	O
by	O
software	O
other	O
than	O
BlindRead	O
and	O
BlindWrite	B-Application
,	O
including	O
Daemon	B-Application
Tools	I-Application
,	O
which	O
was	O
some	O
of	O
the	O
earliest	O
supporting	O
software	O
(	O
capable	O
of	O
using	O
*	O
.BWT	B-Application
files	O
even	O
before	O
Blindwrite	B-Application
was	O
released	O
)	O
.	O
</s>
<s>
BlindWrite	B-Application
won	O
the	O
TopTenReviews	O
Bronze	O
Award	O
in	O
2009	O
.	O
</s>
