34
2.
Query
videos.
After
selecting
one
or
more
channels
on
which
you
want
to
query
video
records.
Enter
the
start/end
time.
Click
Query
to
display
search
results.
3.
Select
video
records
you
want
to
back
up.
Select
one
or
more
video
records
you
want
to
back
up.
Click
Backup
to
enter
the
backup
interface.
CAUTION!
After
selecting
the
channel
and
entering
the
start/end
time,
click
Quick
Backup.
On
the
interface
for
record
backup,
all
the
video
records
within
the
specified
time
periods
on
the
selected
channel
will
be
backed
up
by
default.
4.
Select
the
backup
path.
Select
a
partition
of
a
USB
storage
device
from
the
USB
drive
drop
‐
down
list.Select
a
folder,
or
double
‐
click
to
enter
the
directory
and
then
select
a
folder.
