Welcome to our DVR (Digital Video Recorder) Frequently Asked Questions page. If you haven't been able to find the answers from our support pages or the rest of our website, then we can offer more help here in our FAQ section. Your Stack dealer will be happy to assist you further.

The answers below apply across Stack's range of Digital Video Recorders except where indicated.



Frequently Asked Questions





  Status Lamp Operation



                        Static green

The DVR is ready to record.  Video and card OK.



Video OK, No Card

                        Flashing long red / short green

In stand-by or unable to record with card not present or full.  Video input OK.  If card present, reformat with FAT32




No Video, Card OK

                        Flashing long green / short red

In stand-by (or unable to record) with video not present but card OK.  Check Camera connection & power or check PAL / NTSC setting OK





No Video, No Card

                        Fast flashing red

Unable to record.  Video and card not present or full, or system fault.



PC Connected

                        Flashing equally
green / red
(0.5s red / 0.5s green)

DVR is under external control of the Configuration Utility.



Rec.  100%                         Flashing green

External Recording Lamp also illuminated

Recording OK.  The longer the green flash the greater the memory remaining.  With a new card the Status Lamp will flash for approx. 2.7 seconds on : 0.3 off.  50% remaining, lamp flashes 1.5 sec on : 1.5 off.  10% remaining lamp flashes for 0.3 sec on : 2.7 off.
Mem.   50%                        
Remain.  10%                        






Recording, No Video

                        Fast flashing green / red

Recording but video is not present, audio only is being recorded.



Resetting or Busy

                        Static red System reset / preparing to record or card format.






Q2. What do the on screen display messages mean?
A. The table below describes the DVR’s, On Screen Display (OSD) messages.

Note: These messages are available only on the recorded video & are not applied to the video monitor signal.

OSD message Cause Solution
No Disk

Disk not fully inserted, or simply not there.

Insert new disk

Disk Fail

Disk is not FAT32 format, or has failed.

Check the disk format, & run ScanDisk to recover

No Video

Intermittent video connection or signal.

No video causes the monitor screen to be blank.

Disk Full

Recording memory full.

Re-Format the disk to erase old files.



Q3. Can I get better quality video by manually setting the bit rate?
A. We offer variable bit rate versions of the Stack DVR (PRO DVR, DVR2-200M, DV2-400M, DVR2-500 & DVR2-500M.

Our experience so far with VBR is :

If available
If available

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Stack is a leading supplier of high quality instruments, displays, Data Logging, and video-logging systems to motorsport and harsh environment test solutions with over 30 years of proven experience and service.

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