DVR Examiner – Features – Clip Attributes

What units does the Duration Slider use?

I was recently asked by a user of the software what units the Duration Slider in the Clip Attributes panel uses. So to answer their question I thought I would write this blog post. (If you can’t wait for the answer it is…………… minutes, but see below for more info.)

With the introduction of V2.x the developers at DME Forensics have introduced many new features and expanded the capabilities of some of the existing ones too so this post answers the above question but also introduces users to some of the other features of the Clip Filters panel. You can also pre filter the clip results prior to initiating the scan function see the paragraph at the end of this post.

DVR Examiner Clip Attributes Panel

The following (mostly taken from the help file)  applies to V2.0.4.0;

Clip Filters

Once you have scanned the hard drive and been presented with the results in the clip list you can filter the results for faster review.

At the moment the panel is split into three headings, more detail regarding the first two headings is available in the software’s help file;

Date/Time Configuration

Will allow you to adjust for any difference between the actual time and the time set on the DVR.

Date/Time Filtering

You can set the date/time of interest, defaults to first and last found on the DVR hard drive.

Clip Attributes

Size Slider – Filter clips based on size in MB. The left slider can be used to designate a minimum size and the right slider can be used to designate a maximum size.
Duration Slider – Like the Size Slider, the Duration Slider can be used to designate the minimum and maximum clip durations displayed in the clip grid. The original question prompting this blog was “What units does the slider use?”
The answer is minutes BUT be aware that at the moment the indicator  reports only full minutes so as you move the sliders only the minute is reported but the position of the slider actually relates to the fraction of that second.
Using the example depicted in the image above, if you positioned the minimum slider as far to the right so that the indicator displays 2 but just before it changes to 3 and select “Apply” none of the clips would be shown.

So why might you want the ability to filter on size or duration?

In general, I suspect both of these would be used primarily in situations where the DVR is recording motion. In those situations, DVR Examiner will recover a lot of clips of smaller size and/or duration. So, if you are reviewing video looking for an event that would likely take some time to commit, you could start by filtering out all of the really short/small clips and focus on the larger ones. On the reverse side, the DVR may be mostly recording continuously, so you are left with thousands of 200MB clips of 1 hour each. You could set a max size or duration filter less than those to find any motion events that were recording.
The size filter could also apply for some of the DVRs that record a high quality stream and a lower quality stream. The duration and time stamp will likely be the same, but one clip would be smaller than the other. That being said those DVRs typically tag the secondary stream as a different channel which could be filtered as well.

For completeness here are the other options under the Clip Attributes heading (more details in the help file);

Status – The Status dropdown will display all options available for the filesystem scanned.

Channel – The Channel dropdown will display all channels recovered from the DVR, not all channels available on the DVR.

Has Tags (not shown in the image) – Find clips with or without tags.

Has Notes – Find clips with or without notes.

Pre Filter ResultsDVR Examiner - clip filter

There is also an option to filter the clips prior to scanning, this is useful to reduce the amount of clips displayed, if you need to change the filter parameters you can still do that once the clip list has loaded. I think the feature to only list clips within x hours of last recorded Date/Time would be something I would use a lot.
If you have any questions or ideas for new features please let me know by clicking here to send me an email.

If you have a current DVR Examiner subscription please download the latest version from the support portal here

If you are involved in the recovery of video from CCTV DVRs and you are not yet a user of DVR Examiner you can obtain a free trial here and discover how much easier it is with a tool specifically built for the task.

Free 30 Day Trial

DVR Examiner V2.0.4 released

DVR Examiner Version 2.0.4 released
DME Forensics have released an update which introduces support for some new filesystems and improvements to existing ones. If you like to keep tabs on these updates you may have also noticed that there was a V2.0.3 release. You can read the release notes for both new versions on the page here.

If you have a current subscription please download this version from the support portal here

If you are involved in the recovery of video from CCTV DVRs and you are not yet a user of DVR Examiner you can obtain a free trial here and discover how much easier it is with a tool specifically built for the task.

Free 30 Day Trial

DVR Examiner – recover video from damaged DVRs

Burnt DVR

DVR Examiner recovered video from the hard drive of this seemingly destroyed DVR.

Recovering video from the DVR of a CCTV system can be a time consuming and difficult task at the best of times but when the DVR has been damaged accidentally or maliciously you wont be able to use the DVR to export the video.

DVR Examiner works on the data on the hard drive, no need to power up the DVR, enter a password (even if you have one), navigate the systems model specific user interface or connect to a usb port so even if the DVR is damaged by fire the video evidence may still be recoverable.

Read more about DVR Examiner here

DVR Examiner V2.0.2 released

DVR Examiner V2.02 releasedDME Forensics have released an update which introduces support for some new filesystems and improvements to existing ones. You can read the release notes on the page here.

If you have a current subscription please download this version from the support portal here

If you are involved in the recovery of video from CCTV DVRs and you are not yet a user of DVR Examiner you can obtain a free trial here and discover how much easier it is with a tool specifically built for the task.

Free 30 Day Trial

DVR Examiner V2.0.1 released

DVR Examiner version 2.0.1

DME Forensics have released an update which introduces an improvement in scanning speed for dongle-based users and fixes a few initial release bugs.

If you have a current subscription please download this version from the support portal here

If you are involved in the recovery of video from CCTV DVRs and you are not yet a user of DVR Examiner you can obtain a free trial here and discover how much easier it is with a tool specifically built for the task.

Free 30 Day Trial

DVR Examiner V2 User Manual.

So if you upgrade to the latest version of DVR Examiner you will find a completely new user interface and lots of new features, if you need to know how to use a specific feature there is a user manual available, navigate to the help tab and then select User Manual. This will take you to an online html file, if you are using a machine that isn’t connected to the internet please use a browser on a machine that is connected and navigate to the url of the manual.DVR Examiner help tab

DVR Examiner V2.0 released

DVR Examiner version 2.0 GUIThe developers at DME Forensics have been extremely busy and have just released V2.0.0.0 of their CCTV DVR Examiner software, the release includes some filesystem updates, improvements to existing features and the introduction of motion analysis.

New and improved features

Over the next few weeks I will be exploring the new features in more depth but for the time being here are the highlights, you can read more here

  • Completely new and updated user interface with improved support for high DPI displays and scalability between different monitor resolutions.
  • New landing screen to make it even easier to get started.
  • Native support for E01 forensic images along with existing support for raw/DD forensic images.
  • New Detection Results screen providing detailed information on the features and formats supported for each filesystem.
  • New Scan Options window allowing user to configure special scan options
  • Updated Clip List options
  • Integrated Video Previewer
  • Motion Analysis (Beta)
  • New Exporting Interface
  • Big Improvements in Save/Load speed and file sizes.
  • New Job Engine

If you are involved in the recovery of video from CCTV DVRs and you are not yet a user of DVR Examiner you can obtain a free trial here and discover how much easier it is with a tool specifically built for the task.

Free 30 Day Trial

You can read the DME Forensics announcement on their blog here

Convincing your boss to buy DVR Examiner

pound signThe age old problem…..

When you work for a large organisation like a police force you are unlikely to be in the position to just buy what you need, you have to justify to someone else why the tool that you have found to solve many of your problems will be cost effective and improve you efficiency.

Many users are already enjoying the benefits of using DVR Examiner to recover footage from CCTV DVRs quicker and without the hassle of navigating the systems GUI or needing a password.

DME Forensics, the developers of DVR Examiner, recently blogged about this issue, you can read their post Convincing Your Agency to Buy DVR Examiner

Training – CCTV DVR systems and DVR Examiner

Schippers IT, the European Distributors of DME Forensics software DVR Examiner, are proposing to hold two training courses in Autumn 2017. Both courses will be presented by DME Forensics employees who are travelling from the US for the courses.

Training

Complete Forensic Analysis of CCTV DVR systems

This is an 8 day course from 09:00 to 17:00 GMT+1. It starts on Wednesday 6 September 2017 to Friday 8 September 2017. The course will resume on Monday 11 September 2017 to Friday 15 September 2017. Please note that this course is only available to employees of Government organisations such as Police, HMRC, Armed Forces etc.

Please fill out the form below to receive more information

DVR Examiner User Certification Course

DVR Examiner - software to extract video from CCTV DVRs

This is a 3 day course from 9:00 to 17:00 GMT+1. It starts on Monday 18 September 2017 till Wednesday 20 September 2017. This course is open to existing users of the DVR Examiner software and will include topics related to verification/validation.

Please fill out the form below to receive more information

 

Both courses will be held in Rotterdam

Forensics Europe Expo – 3-4 May 2017

If you are visiting the event please come and say hello you will find us on stand G53 where we will be demonstrating DVR Examiner.

Forensics Europe Expo 2017

What is DVR Examiner?

DVR Examiner is a software solution for acquiring video and metadata from CCTV DVR Hard Drives in a forensically sound manner. Whether in the field or in the lab, DVR Examiner allows law enforcement and other forensic professionals to bypass DVR passwords and archaic menus to quickly extract evidence from the DVR hard drive directly. No need to carve out the data and decipher the time stamps and camera streams.

You can read more here

We look forward to meeting you at the Forensics Europe Expo at Olympia London on the 3rd and 4th May 2017.