Many DVR Examiner users find value in the ability to run a DVR scan or export unattended, so you can focus on other tasks while the program recovers vital video evidence. For DVR Examiner to successfully scan the hard drive, it is important to be sure to set your USB Power Settings correctly.
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Did you know that DVR Examiner can help save time and resources in the field? In this example case study, we look at how to safely and securely recover CCTV/DVR surveillance video in the field.
In the latest release of DVR Examiner – 2.6 – the DME Forensics team focused on updating the DVR Examiner software to allow for increased support functionality. One of the benefits you see in this update is improved scan times for filesystems with many clips.
While other disk imaging programs can be time consuming, DVR Examiner can create a forensically sound disk image in just one simple step.
At the heart of DVR Examiner is its ability to read a proprietary DVR filesystem and display and extract the data contained on the device. This post touches on some of the first steps our team takes to understand how each different filesystem works.
There are several different methods commonly used when recovering video evidence from DVRs. DVR Examiner is a useful tool because it allows you to recover the video fast – usually much faster than traditional methods – and in a forensically sound manner. Still, there is no one solution for every case, and it’s important to know what to do when DVR Examiner doesn’t work as you might hope.
Depending on the file system of the DVR hard drive you are scanning, you may come across a distorted split frame video clip when previewing. At first glance, it appears the same video frame is displayed twice, however, what you are seeing is half of the frame displayed on the top and half of the frame displayed on the bottom.
We want to help make your video recovery process as seamless as possible, which is why we’ve included so many different ways to filter and review the clip list. In understanding how this filtering process works, you can save even more time when recovering valuable video evidence.
The “aspect ratio” button in DVR Examiner 2.5 is designed to detect cases where the frame appears to be significantly too short, and will adjust the frame so that it appears much closer to the correct size and aspect ratio. Learn more in our latest blog.
Within the DVR Examiner Clip List Grid there is a field for the “clip status”. If the filesystem you are processing with DVR Examiner has support for inaccessible/deleted files, the information on these files will be provided here. This field will provide insight into how the clip was stored on the hard drive, and whether or not you will be able to recover it with DVR Examiner by determining if the clip is available, accessible, inaccessible, partially inaccessible, or a clip fragment.
