Off topic but was watching a series called Mayday (plane crashes). One episode they had a black box that was so badly damaged the only way to analyze the data on the damaged tape was using a technology, I think called Granette ?? , where the 1' and 0's on the tape had to be viewed under a microscope with a special lens. They had to construct the bytes of data bit by bit through the microscope, would take days to recover 1 second of data. Couldn't imagine a more boring job.