Floppy Alignment disks have analog signals of varying intensity recorded
on them. A flux detector like the greaseweazle is a binary
(presence/absence) device.
It also has off track signals on it. I don't think there is any way to
create them with anything but a specially modified drive connected to a
special controller.
On 10/2/2024 7:36 PM, Chuck Guzis via cctalk wrote:
On 10/2/24 16:04, Ali via cctalk wrote:
I assume it's not easy to copy alignment disks, but I guess I will
find out.
It's actually not possible to copy them. Not for any "copy protection"
reasons, but just the very nature of the analog signal laid down on the
disk. No "regular" disk drive can recreate the signal.
Chuck had actually talked about how to make one on a VCF post a while back:
https://forum.vcfed.org/index.php?threads/greaseweazle-v4-reading-m1-5-25-fl
oppies-on-a-sa400a-drive.1242918/post-1380519. Didn't sound like it was
going to be as easy as copying a disk... ;)
No, not easy, but possible, given skill, equipment and patience.
