MPEG4 Pentaplex Standalone DVR
71
7.5.4.4
.Record
Quality
1)
SIZE
[720x480(576),
720x240(288)
and
360x240(288)]
There
are
three
recording
resolution
modes
you
can
choose
from.
With
720x480(576)
mode,
DVR
records
video
at
full
D1resolution.
With
720x240(288)
mode,
DVR
records
video
at
half
D1
resolution.
With
360x240(288)
mode,
DVR
records
video
at
CIF
resolution.
2)
SPEED
(F/S)
[30
/
15
/
10
/
7
/
6
/
5
/
4
/
3
/
2
/
1
/
0]
Select
recording
speed
in
frame/image
per
second.
Higher
F/S
requires
more
HDD
spaces.
Set
lower
F/S
for
more
recording
time.
Recommended
speed
is
30
F/S
with
CIF
resolution.
•
If
your
remaining
available
speed
is
less
than
240
(120)
F/S
for 16(8)
CH
DVR,
optional
“All
‐
In
‐
One
Channel
Mode” for
NetViewer clients
will
be
disabled.
If
you
want
to
use
this
optional
feature
for
NetViewer,
please
make
sure
to
have
enough
remaining
available
speed
for
All
‐
In
‐
One
Channel
Mode.
3)
QUALITY
[Normal
/
Good
/
Very
Good
/
Excellent]
Select
recording
video
quality. Higher
video
quality
requires
more
HDD
space.
4)
GOP
[15/30]
This
number indicates
the
number
of
P
‐
frames
between
I
‐
Frame
(=base
frame
of
picture)
and
a
following
I
‐
Frame.
15
:
DVR
will
record
I
‐
Frame
per
every
15
frames.
30
:
DVR
will
record
I
‐
Frame
per
every
30
frames.
Lower
number
(means
more
I
‐
Frames
within
the
same
recorded
frames)
provides
a
better
picture
quality
and
smooth
FF,
REW
and
transmission
through
the
network
but
requires
more
HDD spaces.
What
is
I
‐
Frame?
a
video
compression
method
used
by
the
MPEG
standard.
In
a
motion
sequence,
individual
frames
of
pictures
are
grouped
together
(called
a
group
of
pictures
,
or
GOP
)
and
played
back.
