On Sun, Aug 3, 2014 at 10:29 PM, dwight <dkelvey at hotmail.com> wrote:
Although, not the easiest thing to do, there is a way
to
read the disk without causing the damage that heads can do.
The bit are possible to be read optically. One uses a material
like used for magnaflux.
Is there any way to use the Faraday effect to read a magnetic disk optically?