<s>
Drive	B-Application
Letter	I-Application
Access	I-Application
(	O
DLA	O
)	O
is	O
a	O
discontinued	O
commercial	B-Application
packet	B-Device
writing	I-Device
application	O
for	O
the	O
Microsoft	B-Application
Windows	I-Application
operating	I-Application
system	I-Application
that	O
allows	O
optical	B-Device
disc	I-Device
data	B-General_Concept
storage	I-General_Concept
devices	I-General_Concept
to	O
be	O
used	O
in	O
a	O
manner	O
similar	O
to	O
floppy	B-Device
disks	I-Device
.	O
</s>
<s>
DLA	O
is	O
a	O
packet	B-Device
writing	I-Device
technology	O
for	O
CD	O
and	O
DVD	O
media	O
that	O
uses	O
the	O
UDF	O
file	B-Application
system	I-Application
.	O
</s>
<s>
As	O
a	O
replacement	O
for	O
DLA	O
,	O
it	O
remedies	O
compatibility	O
issues	O
Internet	B-Application
Explorer	I-Application
8	I-Application
.	O
</s>
<s>
Also	O
,	O
most	O
PC	B-Device
systems	O
from	O
Dell	O
,	O
HP	O
,	O
IBM	O
,	O
Sony	O
and	O
Toshiba	O
came	O
with	O
DLA	O
pre-installed	O
.	O
</s>
<s>
To	O
use	O
an	O
optical	O
medium	O
such	O
as	O
a	O
CD-R	O
,	O
CD-RW	O
,	O
DVD±R	O
or	O
DVD±RW	O
just	O
like	O
a	O
floppy	B-Device
drive	I-Device
it	O
is	O
necessary	O
to	O
utilize	O
a	O
technique	O
called	O
packet	B-Device
writing	I-Device
.	O
</s>
<s>
After	O
formatting	O
the	O
optical	B-Device
media	I-Device
it	O
is	O
then	O
possible	O
to	O
write	O
data	O
in	O
small	O
packets	O
,	O
hence	O
the	O
name	O
“	O
packet	O
writing.	O
”	O
The	O
optical	O
drive	O
unit	O
has	O
to	O
support	O
the	O
ability	O
to	O
write	O
in	O
small	O
units	O
,	O
which	O
all	O
modern	O
CD	O
and	O
DVD	O
recording	O
drives	O
do	O
.	O
</s>
<s>
This	O
way	O
it	O
is	O
possible	O
to	O
save	O
files	O
onto	O
optical	B-Device
media	I-Device
,	O
as	O
well	O
as	O
change	O
,	O
rename	O
or	O
delete	O
them	O
,	O
or	O
copy	O
files	O
separately	O
onto	O
the	O
media	O
.	O
</s>
<s>
Without	O
packet	B-Device
writing	I-Device
,	O
optical	B-Device
media	I-Device
like	O
the	O
above-mentioned	O
would	O
have	O
to	O
be	O
written	O
on	O
in	O
one	O
big	O
block	O
,	O
like	O
Disc	B-Application
At	I-Application
Once	I-Application
(	O
DAO	B-Application
)	O
,	O
Session	O
At	O
Once	O
(	O
SAO	B-Application
)	O
and	O
Track	B-Application
At	I-Application
Once	I-Application
(	O
TAO	B-Application
)	O
,	O
because	O
these	O
media	O
types	O
normally	O
do	O
not	O
support	O
sectors	O
.	O
</s>
<s>
After	O
formatting	O
with	O
packet	B-Device
writing	I-Device
the	O
medium	O
is	O
sectored	O
in	O
blocks	O
that	O
can	O
be	O
written	O
to	O
individually	O
.	O
</s>
<s>
The	O
preferred	O
file	B-Application
system	I-Application
is	O
the	O
Universal	O
Disk	O
Format	O
(	O
UDF	O
)	O
in	O
versions	O
from	O
1.50	O
onward	O
,	O
which	O
is	O
also	O
used	O
by	O
DLA	O
.	O
</s>
<s>
Packet	B-Device
writing	I-Device
is	O
not	O
required	O
for	O
writing	O
DVD-RAM	O
.	O
</s>
<s>
However	O
,	O
for	O
Windows	O
up	O
to	O
2000	O
,	O
DLA	O
will	O
also	O
add	O
support	O
for	O
DVD-RAM	O
together	O
with	O
the	O
UDF	O
file	B-Application
system	I-Application
,	O
for	O
Windows	O
XP	O
DLA	O
will	O
only	O
add	O
the	O
UDF	O
support	O
.	O
</s>
<s>
DLA	O
also	O
supports	O
the	O
Mount	B-Device
Rainier	I-Device
standard	O
with	O
MRW	O
capable	O
drives	O
.	O
</s>
<s>
Windows	O
XP	O
is	O
the	O
first	O
Windows	B-Application
operating	I-Application
system	I-Application
to	O
support	O
DVD-RAM	O
.	O
</s>
<s>
Windows	O
Vista	O
is	O
the	O
first	O
Windows	B-Application
operating	I-Application
system	I-Application
to	O
support	O
full	O
UDF	O
functionality	O
(	O
UDF	O
up	O
to	O
version	O
2.50	O
,	O
full	O
support	O
meaning	O
read	O
and	O
write	O
operations	O
)	O
and	O
Mount	B-Device
Rainier	I-Device
.	O
</s>
<s>
DLA	O
is	O
available	O
only	O
for	O
Microsoft	B-Application
Windows	I-Application
operating	I-Application
systems	I-Application
and	O
only	O
in	O
the	O
English	O
language	O
.	O
</s>
<s>
DLA	O
is	O
not	O
compatible	O
with	O
Internet	B-Application
Explorer	I-Application
8	I-Application
.	O
</s>
<s>
DLA	O
can	O
cause	O
stop	O
errors	O
(	O
BSoD	O
)	O
on	O
the	O
Windows	O
Server	O
2003	O
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
When	O
this	O
occurs	O
,	O
a	O
solution	O
is	O
to	O
restart	O
the	O
operating	B-General_Concept
system	I-General_Concept
.	O
</s>
<s>
Launch	O
Windows	B-Protocol
Explorer	I-Protocol
or	O
open	O
its	O
My	O
Computer	O
component	O
.	O
</s>
