Re: Hardware musings

["mdj" <mdj.mdj@gmail.com>]

Mark McDougall wrote:

> Consider this: a protection scheme that does indeed permanently damage a
> known set of bytes on the disk surface. The software boots and then
> writes data to the area known to be 'bad'. Then it reads it back, and
> verifies that the data does *NOT* match what was written.
>
> This scheme could NOT be duplicated on any Apple II disk drive,
> regardless of the level of control over the drive itself.

You're right of course - I hadn't considered that.

While I suppose it's feasible to capture that information in an image,
it would obvioiusly require some minor hacking to make it possible to
rewrite the image to a physical disk.

I'd be happy enough to declare these open for 'stealth' hacks, as long
as it's documented somewhere.

Matt