Originally Posted by
lynw
As for the retrieval of data that has been overwritten using the previous write pattern on the disk, yes it is technically possible.
Hello,
As an forensics professional, you are aware that magnetic force microscopy has never been used to recover data off once-overwritten magnetic media. I assume you are also aware of the 2006 NIST Special Publication which stated that using magnetic force microscopy to recover data from magnetic media of any considerable density is impossible. Since you would know all this, I wonder why you would make such a statement.
It is also irrelevant since the CVR/FDR would not be recording to magnetic tape on the accident aircraft.