Okay, it’s been a while since we shared a post about the history of DME Forensics. If you haven’t already, I’d recommend checking out the prior posts in this series to get caught up.
One of the most common questions our technical support team receives is "Is my DVR supported by DVR Examiner?". Unfortunately, even though DVR Examiner is simple, the answer to this question isn't.
When we released DVR Examiner 2.0 this past July, we made a number of significant improvements to the program and user interface. However, we recognize these changes did not come without their challenges. I want to take a minute to break down the decisions we made and share what we are doing to address some of the challenges and concerns you have encountered.
In 2.0, our team has worked hard to incorporate your feedback and implement new features that make DVR Examiner even more efficient and easier to use. We specifically focused on adding and improving features that have a direct effect on helping you find, review, organize, and export your videos of interest.
Thanks for coming back to learn more about how DME Forensics started! If you haven't already, I'd recommend reading my previous post ("Growth in a Small Forensics Company - The Beginning") to get caught up.
DME Forensics is celebrating a birthday later this month - it'll be four years since we started operating full-time. I figured this would be a good time to take a look back at how we started and, more importantly, the successes and challenges that brought us to where we are today. There is a lot to share, so I'll be breaking this up into several posts in the near future.
Ever since I’ve been involved in digital & multimedia evidence, the traditional computer forensics community has been engaged in an ongoing debate. When you arrive on scene to a running computer, do you pull the plug or do you conduct an orderly shutdown of the computer?
You are recovering video from a DVR system with multiple hard drives and the manual tells you that the system uses RAID - can DVR Examiner help you?
Before attempting the recovery, you should investigate a little further to determine the best course of action.
When it comes to adding support for new DVRs into DVR Examiner, or recovering video manually for a laboratory case, understanding the proprietary metadata of a given DVR filesystem is critical.
While I will be posting a series of posts over the next few months on understanding the proprietary structure of DVR filesystems, I wanted to share some information about Hikvision systems that was recently requested.
Most DVR filesystems store key metadata in 2 different places: the index(es) and at the beginning of each frame. In the case of the Hikvision-based systems, the index information is stored at the end of each data block, and provides a date time range per channel for the clips within that block. In this metadata, the date time is stored as a traditional Unix epoch timestamp (seconds since 1970). However, the date/time metadata at the frame level is stored in a very different manner.
Two questions I am often asked are “What type of forensic video analysis system should I buy?” and “I have “X” system and I’m really comfortable with it, should I get another one or is there something better out there?”. I’ve answered this enough times that I figured I’d actually put it down in a blog post. As you’ll see, my goal in this post isn’t to recommend one specific system over another, but to present some things for you to consider when looking to acquire a new system.