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How a Laser-Shot Disk Defeats Hackers & Pirates (Coding Secrets)

GameHut

151K subscribers • 2 videos on Hallway

YouTube
  • Recommended by 3 people: 2 on Hacker News and 1 on Lobsters.
  • A classic. People kept recommending it from 2018 to 2021.
  • Presented by Jon Burton

Beginner. No background in the topic needed.

132K views8 years ago3 recommendations

SecurityHistory and cultureRetro computingRetro games and consoles

Jon Burton explains how retro game developers used physical laser damage on floppy disks as a form of copy protection.

Shooting Holes in Disks with a Laser is Incredible when it comes to Retro Copy Protection. Find out how in this episode of Coding Secrets. Is That You or Are You You by Chris Zabriskie is licensed under a Creative Commons Attribution license (creativecommons.org/licenses/...) Source: chriszabriskie.com/reappear/ Artist: chriszabriskie.com/

Why it's here

3 people recommend this, 1 disputes it

What people say. Shared as an interesting historical example of physical copy protection, though some dispute the exact technical details of the disk damage.

willlon Lobsters • Recommends

How a Laser-Shot Disk Defeats Hackers & Pirates

ZenoArrowon Hacker News • Recommends

On “Gaming's most fiendish anti-piracy tricks (2010)”

I thought the two methods described in this video were both good: link to this video Also, the method described here, even though it didn't result in a financially successful game, was pretty clever (pirating the game meant your game company would be defeated by pirates): link

LaserDiscManon Hacker News • Recommends

On “The Coding Secrets Hidden in “Sonic the Hedgehog” [video]”

For those who don't know, Burton explains this in depth here: link Another one of my favorite ones describes copy protection via intentionally destroyed floppy sectors: link to this video

amiga386on Hacker News • Disputes

On “The Space Quest II Master Disk Blunder”

I can give you an example of someone claiming there were holes in the disk, Jon Burton, but they're a goddamn liar : link to this video I have the original release of Leander. There are no holes in the disks. The code on the disk doesn't write anything besides hiscores. There is a protection routine exactly where he says there is, however what it does is check for a long track . It waits for the index pin, reads lots of data from the track, then looks to find two sync marks in the data it read, and they're at least a certain distance away from each other. No lasers, no holes, no writing. Standard long track protection. Here's the whole routine: link Here's a page that more accurately describes floppy…

mizaruon Hacker News • Mentions

On “Gaming's most fiendish anti-piracy tricks (2010)”

According to Jon Burton, something like this was actually done for the Amiga game Leander, although not with the intent to damage hardware: link to this video