This information was written by The Great Hierophant. I. Overview of Low-Level Floppy Disk StructureI am going to be using a standard 360KB floppy disk as an example here. A standard MS-DOS format command formats a 360KB floppy disk with 40 cylinders, 9 sectors per cylinder and 512 bytes per Continue Reading
Disk based Copy Protection IBM-MSDOS
During the 1980/1990’s many games and programs used disk based copy protection to combat piracy. Here is a list compiled by Moebius. – Az-Tech Everlock – BBI StopCopy – Best Protection Kit A/B – COPS Copylock 1/2 – Electronic Arts IBM Interlock – Formaster Copylock – HLS Duplication – Microprose Continue Reading
SUPERLoK Notes
SUPERLoK Notes by Olivier Biggerstaff The purpose of these notes is to provide you with technical information about the SUPERLoK copy-protection system and how it affects installing and uninstalling Ashton-Tate products. After you have read “SUPERLoK Notes”, you will have a clear understanding of (1) the error messages generated by SUPERLoK and what they Continue Reading