COP-USA DVRMPEG4-16LAN - Manual (Page 119)

The file recorded by this DVR is postscript file, whose suffix is “.ps”. Any postscript file in the
HDD or CD/DVD can be played back, containing the HDD or CD/DVD driver connected to ATA and USB
interface of computer.
2.7 Volume Control
: The audio is disabled.
: The audio is on. The volume is from low to high when the bar is shifted from
left to right.
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