[BC] x-rays and hard drives

[Kevin Tekel]

Cowboy wrote:
>  It is possible to look at the surface structure of a disk, and
>  determin the magnetic alignment of the individual molecules.
>  Once that data is collected, you then could reconstruct the magnetic
>  patterns of the disk surface, thence the data streams,
>  bit by miserable bit.

You can also place a phonograph record on a scanner, and use a "virtual
stylus" to spin its way around the disc and play the audio, just based on
the scanned image of the disc's grooves.  The quality is very poor, but
people have been able to do this using an ordinary PC scanner.




	
		
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