hmmm, I worked at google when they were doing a drive upgrade. They couldn't erase 100,000 hard drives (it would take years of time in the eraser machines) so t

hmmm, I worked at google when they were doing a drive upgrade. They couldn't erase 100,000 hard drives (it would take years of time in the eraser machines) so they had to destroy them, which I assume meant melting them and eventually extracting the gold.