Forensic Imaging is the court of law accepted standard for the preservation of computer-based evidence. Much different than a simple copy or a backup of your data, imaging is a non-invasive method of producing a complete bit-by-bit copy of an electronic storage device. It is the electronic version of “freezing the scene.” The image can be stored on a durable medium such as a CD or DVD or Blu-Ray and is used as the working copy for examination and production of evidence.
There are so many court approved imaging devices available in the market to image any type of digital media (IDE, SATA, SCSI, SAS, USB etc.). Few examples are mentioned below: