26 Jan
2008
26 Jan
'08
9:20 a.m.
Randy Dawson wrote:
I did get some of the old copy protect diskette stuff
to work, Wintek Smartwork, a PCB layout program. we found that the check relied on trying
to write to the floppy, at a specific track and sector, where they laser burned off the
oxide. If the write failed, they knew it was the original disk.
That is a very very rare protection -- I'd consider that software
collectible just for the protection method involved!
There was an "enhanced" Central Point option board with a bushbutton on
the back of the bracket; the idea was that, for laser hole "copies", it
would scan the source disk and find the hole somehow. Then it would
store the location on the board somewhere, and when you had the
pushbutton in, that sector would always fail reads or writes.
I like your solution though (scraping under a microscope ;-)
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/