I can't seem to get a floppy that both my plus and my SE like. All I have are HD disks. If I format it on the plus as a double-sided disk, I get (as expected) an 800K disk that the plus likes just fine. But, when I put it in the SE, it doesn't like it, and asks me if I want to format it.

Am I doing something wrong? All I have are HD disks, but I thought they could be formatted as 800k disks. What do I have to do to get a floppy that both machines like?

Thanks,

Nathan