On 09/01/2020 15:57, ghe wrote:
Back in the analog days, I worked at a college radio station that sent out radio programs on tape. There was a big box that we passed a reel of tape over to erase it. That box might do disks too :-)
I recall reading that the information encoded on HDDs is much more densely and strongly encoded and on multiple platters, so much harder to reliably erase with external magnetic fields such as those generated by a bulk tape eraser.
Kind regards, -- Ben Caradoc-Davies <ben@transient.nz> Director Transient Software Limited <https://transient.nz/> New Zealand