File Copy Protection & Disc Copy Protection Challenge

CD Copy Protection Methods


With the coming of CDs, the manual look-up protection has waned as a means of preventing piracy. Instead, many software companies are trying to prevent users from being able to copy CDs containing the software. Some even go as far as preventing the game from being able to run unless the CD is in the CD drive.

The following are some of the means used to prevent CD copying:

Oversized CDs: Some companies print CDs which contain slightly more data than regular CD-Rs can hold. Copying such a CD onto a regular CD-R is impossible. However, bigger-capacity CD-Rs are now available that can hold as much information as any mass-produced CD. In addition, many companies boost the size of the CD by blatantly including software that is unnecessary to the product being sold. For example, some game manufacturers have put Netscape Navigator onto their CDs. This gives pirates an easy opportunity to avoid copying the unnecessary files and thereby copy the oversized CD onto a regular CD. (Starcraft is an example of a game protected by oversized CD).

Fake TOC: An illegal table of contents is written to the CD, to make Windows think that the CD holds over 1 GB of data. There are commercial CD-recording programs available which can defeat this method of protection. (Tomb Raider 3 was protected with this scheme).

SecureROM: A CD contains a file which cannot be copied by a CD burner, as well as a duplicate copy of this file which can be copied. When the program starts up, it searches for the two files and compares them. If they're not identical, then the CD must have been copied, and the program quits. Cracks to defeat this protection are available online. (FIFA '99 used this copy protection method).

LaserLock: Uses a combination of a special CD-making process and software protection, including a special glass-mastering process and a state-of-the-art debug prevention software engineering embedded in the code. (Metro Police is an example of a game protected with LaserLock). To defeat this protection, a CD can be copied in its entirety onto the hard drive and burned onto a CD-R from the hard drive.

Other protection methods:

- SafeDisc
- CD-Cops
- DiscGuard

All of the above methods can be defeated.


*** Excerpt from stanford.edu - Copyright Protection: Techniques. ***


Software Copy Protection Sample.
File Copy Protection Plus Disc Copy Protection Challenge.


Folder: SoftCP
Files: 1-Original.nrg, 2-File-CP.nrg and 3-Disc-CP.nrg



Original Software Disc Image.
- 1-Original.nrg -> Size = 680 MB



- Disc Image Properties
  Source: C:\SoftCP\1-Original.nrg
  Format: Nero images
  Sectors: 359423
  Sessions: 2
  Tracks: 2
  Compressed: No

Download 1-Original.nrg - Unprotected Disc Image (without Copy Protection).


- Drive F (Virtual Disc Drive) Properties
  Volume Label: "AtmajiZia.Com_IE"
  Type: CD Drive
  File system: CDFS
  Used space: 415.330.304 bytes = 396 MB
  Free space: 0 bytes = 0 bytes
  Capacity: 415.330.304 bytes = 396 MB


- Drive F (Content Properties)
  Content: 6 items => 6 items selected
  Total: 2.458 Files, 88 Folders
  Type: Multiple Types
  Location: All in F:\
  Size: 392 MB (411.822.955 bytes)
  Size on disk: 394 MB (414.158.848 bytes)



Software Disc Image with File Copy Protection.
+ 2-File-CP.nrg -> Size = 680 MB



+ Disc Image Properties
   Source: C:\SoftCP\2-File-CP.nrg
   Format: Nero images
   Sectors: 359423
   Sessions: 2
   Tracks: 2
   Compressed: No

Download 2-File-CP.nrg - Disc Image with File Copy Protection.


+ Drive G (Virtual Disc Drive) Properties
   Volume Label: "AtmajiZia.Com IE"
   Type: CD Drive
   File system: CDFS
   Used space: 8.788.791.908.352 bytes = 7,99 TB
   Free space: 0 bytes = 0 bytes
   Capacity: 8.788.791.908.352 bytes = 7,99 TB


+ Drive G (Content Properties)
   Content: 5 items => 5 items selected
   Total: 3 Files, 2 Folders
   Type: Multiple Types
   Location: All in G:\
   Size: 55,0 MB (57.731.047 bytes)
   Size on disk: 55,0 MB (57.733.120 bytes)


Software Disc Image with File and Disc Copy Protection.
* 3-Disc-CP.nrg -> Size = 781 MB



* Disc Image Properties
   Type of file: NRG File (.nrg)
   Location: C:\SoftCP
   Size: 781 MB (819.255.976 bytes)
   Size on disk: 781 MB (819.257.344 bytes)

Download 3-Disc-CP.nrg - Disc Image with File and Disc Copy Protection.


* Drive E (Real DVD RW Drive) Properties
   Volume Label: "AtmajiZia.Com IE"
   Type: CD Drive
   File system: CDFS
   Used space: 8.788.791.908.352 bytes = 7,99 TB
   Free space: 0 bytes = 0 bytes
   Capacity: 8.788.791.908.352 bytes = 7,99 TB


* Drive E (Content Properties)
   Content: 5 items => 5 items selected
   Total: 3 Files, 2 Folders
   Type: Multiple Types
   Location: All in E:\
   Size: 55,0 MB (57.731.047 bytes)
   Size on disk: 55,0 MB (57.733.120 bytes)


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