Hi,
> the safe side and use 7 passes to be thorough. If memory > serves, seven passes is also the DoD standard (along with > randomized non-sensitive data for the re-write). I don't want to beat this one to death, but more than a few questions bounce around in my head. Any physics majors or hd gurus out there? Having a fair amount of experience in the audio field, I understand the issues involved with analog recordings but I know very little about the details of digital media. This seems to imply that if I re-write the same data to the same location on a disk, the bits are magnetically stronger with each write, or even that under normal use, I could extract (under optimal conditions) several generations of data from the same location on the disk. I suppose various vendors would create heads that write stronger signals to disk and would prove more reliable from a security (and integrity) point of view. Sort of going back to college, can someone point me to an authoritative breakdown of hard drive media? I have to admit, my curiosity is thoroughly piqued! Thanks, Matthew Tallon