I wonder if one of the old CRT demagnetizer‘s would work. Sent from my iPhone
> On May 6, 2024, at 13:30, Bill Gunshannon via cctalk <cctalk@classiccmp.org> > wrote: > > On 5/6/2024 2:28 PM, Wayne S via cctalk wrote: > > You do need a very strong magnet. I’ve put 3.5 floppies on top of > > a mag tape demagnitizer ( not technically called that, but you know > > what i mean) and it had no effect at all. I could still read them fine > > in my pc. I surmised that the magnetic field generated was not strong > > enough to get through the plastic disk shield. Gave up after that. > > And yet, I have a cheap Radio Shack tape degauzer and it erases > 3.5" disks just fine. I do it all the time whenever I have > one that refuses to reformat. Quick pass over the degauzer > and they usually work fine. If not, time to toss them. > As for 720K disks I bought a box of new ones (12 boxes actually) > several years ago on eBay and expect they will out last me. > Especially now that I am moving everything to Goteks. > > bill
