Case study: Forensic analysis of a Samsung digital video recorder

In May 2007, a case of potential child abuse was reported to the hospital where the victim was under observation. The child had been in the hospital for several months and there was hope that a digital video recorder (DVR) may have recorded the maltreatment of a hospitalized child. Unfortunately the recordings could not be found on the device by hospital security employees. The DVR was given to digital forensic examiners in an effort to recover footage. This article details how the system was examined, describing the steps that were taken to obtain information and how the information was interpreted. The methods described in this article can be applied to other similar devices.