<s>
Service	B-Application
Description	I-Application
Table	I-Application
(	O
SDT	O
)	O
is	O
a	O
metadata	O
table	O
used	O
in	O
Digital	B-Application
Video	I-Application
Broadcasting	I-Application
systems	O
to	O
describe	O
the	O
television	O
,	O
radio	O
or	O
other	O
services	O
contained	O
in	O
MPEG	O
transport	O
streams	O
provided	O
by	O
the	O
system	O
.	O
</s>
<s>
The	O
purpose	O
and	O
format	O
of	O
the	O
table	O
is	O
defined	O
in	O
ETSI	O
EN	O
300	O
468	O
:	O
Specification	O
for	O
Service	O
Information	O
(	O
SI	O
)	O
in	O
DVB	B-Application
systems	O
.	O
</s>
<s>
An	O
MPEG	O
transport	O
stream	O
consists	O
of	O
a	O
sequence	O
of	O
packets	B-Protocol
.	O
</s>
<s>
SDTs	O
are	O
contained	O
in	O
packets	B-Protocol
identified	O
by	O
the	O
packet	B-Protocol
ID	O
(	O
PID	O
)	O
0x0011	O
.	O
</s>
<s>
Such	O
packets	B-Protocol
may	O
alternatively	O
contain	O
a	O
Bouquet	O
Association	O
Table	O
(	O
BAT	O
)	O
or	O
a	O
Stuffing	O
Table	O
(	O
ST	O
)	O
.	O
</s>
<s>
The	O
type	O
of	O
information	O
carried	O
in	O
the	O
packet	B-Protocol
is	O
identified	O
using	O
a	O
table	O
ID	O
.	O
</s>
