ThanksJared wrote:Most DVRs use a proprietary file system. And, while the files themselves might be a sort of MP4 type of video, they're impossible to recover through file carving due to extreme fragmentation. Since a DVR is recording multiple video streams at once, the chunks of files are all intertwined.
There is software specifically designed to work with DVRs but it's usually expensive and doesn't support all models. For example: https://dmeforensics.com/dvr-examiner/
Often though, you need a specialist to modify their software to work for a new DVR.
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