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Shortly after the release of
Windows 10 in 2015, Microsoft announced that games with SafeDisc DRM would not run on the operating system, citing security concerns over the software due to the way in which it becomes "deeply embedded" in the system. Microsoft stated that supporting SafeDisc could have
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The protection also has "weak" sectors, introduced with this version, which causes synchronization problems with certain CD-Writers. Digital signatures are still present in this version. But this has no effect on disc images mounted in Daemon Tools or similar programs. In addition, SafeDisc
Version
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during the copying process.) Certain multimedia programs are designed to run from the PC's hard drive without accessing files from the program disc after the initial installation. SafeDisc will permit this as long as the consumer retains the original CD or DVD, which is required for authentication
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On
November 7, 2007, Microsoft stated that "there is vulnerability in Macrovision SECDRV.SYS driver on Windows and it could allow elevation of privilege. This vulnerability was patched by Microsoft on December 11, 2007 This vulnerability does not affect Windows Vista. The driver, secdrv.sys, is
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Another potential attack on SafeDisc is to pull the encrypted application out of the archive it is contained in. All SafeDisc encrypted discs contain an ICD file, an encrypted format used by SafeDisc to ensure that the original CD is loaded. UnSafeDisc circumvents and decrypts SafeDisc encrypted
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SafeDisc v3 is capable of encrypting multiple executables over one or more CDs/DVDs, as long as the executables are encrypted with the same key and the digital signature is added to each media. SafeDisc v3 supports
Virtual Drives as long as the original CD/DVD is available. Once the CD has been
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to the optical media at the time of replication. Each time a SafeDisc-protected program runs, the SafeDisc authenticator performs various security checks and verifies the SafeDisc signature on the optical media. The authentication process takes about 10 to 20 seconds. Once verification has been
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SafeDisc v3 uses a key to encrypt the main executable (EXE or DLL) and creates a corresponding digital signature which is added to the CD-ROM/DVD-ROM when they are replicated. The size of the digital signature varies from 3 to 20 MB depending how good the encryption must be. The authentication
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The early versions of SafeDisc did not make the discs very difficult to copy. Recent versions 2.9+ could produce discs that are difficult to copy or reverse engineer, requiring specific burners capable of emulating the "weak sectors" and odd data formats that are characteristic of SafeDisc.
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has the ability to do this.) SafeDisc
Versions 2.90 and above make burning copies more difficult requiring burners that are capable of burning the "weak sectors"; these drives are uncommon. However, there are software solutions that eliminate the need for specialized hardware.
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used by games which use
Macrovision SafeDisc. Without the driver, games with SafeDisc protection would be unable to play on Windows. Ultimately, this would prove to be one of the factors that would lead to them to drop support for the program in 2015.
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established, the sequence is complete and the program will start normally. The SafeDisc signature is designed to be difficult to copy or transfer from the original media. (For example, it might change as a result of
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The initial version of SafeDisc was easy for home users and professional duplicators alike to copy, due to the fact that the ICD file can be decrypted and converted into an EXE file.
601:, followed by three unsigned longs, these are the version, subversion and revision numbers (in hex). When making a backup, read errors will be encountered between sectors 800–10663.
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been a possible loophole for computer viruses to exploit. Support for SafeDisc on earlier versions of
Windows was withdrawn upon the release of update number 3086255 in 2015.
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There have been several editions of SafeDisc over the years. Each one has the goals of making discs harder to copy. The current revision is marketed as SafeDisc
Advanced.
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files by opening the ICD file format, decrypting it, and converting it to an EXE file. However, each program requires a specific patch to enable full functionality.
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each time the program is launched. Failure to place the original disc in the drive when loading the program will prevent validation of the SafeDisc signature.
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such software, meaning that those who want to use this method must install additional software to cloak the mounter; examples include
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authenticated the game should continue to run from the virtual drive, provided the virtual drive software has not been blacklisted.
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over time, with the final build being version 4.90.010 in May 2008, and with the product being discontinued on March 30, 2009.
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The EXE executable is only a loader which decrypts and loads the protected game executable in the encrypted ICD file.
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778:"MS15-097: Description of the security update for the graphics component in Windows: September 8, 2015"
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590:.ICD file obsolete. Also the CLOKSPL.EXE file, which was present in SafeDisc v1, no longer exists.
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detection making it impossible to use a copy in a burner unless software that masks this is used (
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The final major SafeDisc version was
Version 4, released in February 2005. It lost ground to
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Vulnerability in
Macrovision SECDRV.SYS Driver on Windows Could Allow Elevation of Privilege
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Please help update this article to reflect recent events or newly available information.
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Vulnerability in Macrovision Driver Could Allow Local Privilege escalation (944653)
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SafeDisk V1 protected CDs can be recognized by several files on the CD:
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Although the stated use is to prevent piracy, many, including the
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729:"Windows 10 won't run games with SecuROM DRM, says Microsoft"
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but rather to control those who make devices that play movies
586:.EXE) is now integrated into the main executable, making the
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676:"SafeDisc End-of-Life Notice – Trymedia – Wayback Machine"
754:"Windows 10 won't run games with SafeDisk, SecuROM DRM"
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The following files should exist on every original CD:
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Electronic Frontier Foundation's website's DRM section
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163:. Unsourced material may be challenged and removed.
467:Previous versions of SafeDisc were overcome by
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64:Learn how and when to remove these messages
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557:is replaced with the actual game's name).
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277:Learn how and when to remove this message
223:Learn how and when to remove this message
121:Learn how and when to remove this message
1039:Sony BMG copy protection rootkit scandal
593:The SD2 version can be found inside the
711:companies use DRM not to stop piracy...
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545:And also by the existence of two files
434:, believe it is used to restrict one's
623:process takes about 10 to 20 seconds.
419:applications and games distributed on
7:
1065:Compact Disc and DVD copy protection
161:adding citations to reliable sources
599:BoG_ *90.0&!! Yy>
703:Commentary by Fred Lohmann of the
567:SafeDisc (V2) (November 2000–2003)
25:
578:00000002.TMP (not always present)
45:This article has multiple issues.
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137:
75:
34:
752:Copeland, Wesley (2015-08-19).
653:SafeDisc driver vulnerabilities
148:needs additional citations for
53:or discuss these issues on the
597:.EXE file through its string:
432:Electronic Frontier Foundation
1:
341:4.90.010 / 2 May 2008
861:SafeDisc product description
678:. 2018-07-26. Archived from
727:Walton, Mark (2015-08-18).
318:; 26 years ago
101:the claims made and adding
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917:Digital rights management
641:SafeDisc (V4) (2005–2008)
618:SafeDisc (V3) (2003–2005)
521:SafeDisc (V1) (1998–2001)
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248:This article needs to be
937:Extended Copy Protection
813:CloneCD product web page
27:Copy-protection software
502:SafeDisc adds a unique
425:Macrovision Corporation
301:Macrovision Corporation
876:Weak Sectors explained
871:SafeDisc 1–4 Explained
343:; 16 years ago
479:. SafeDisc currently
454:Withdrawal of support
866:SafeDisc 2 Explained
715:." (emphasis added)
157:improve this article
1029:Defective by Design
881:Weak Sector Utility
824:Clone CD Change log
802:Clone CD Change log
469:disc image emulator
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86:possibly contains
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1034:Software cracking
996:Windows Media DRM
782:Microsoft Support
582:The loader file (
504:digital signature
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682:on 2009-02-19.
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463:Circumvention
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174: –
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168:Find sources:
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146:This article
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111:December 2008
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787:26 September
785:. Retrieved
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761:. Retrieved
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736:. Retrieved
733:Ars Technica
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680:the original
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575:00000001.TMP
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553:.ICD (where
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541:DPLAYERX.DLL
529:00000001.TMP
524:
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477:Alcohol 120%
473:Daemon Tools
466:
457:
448:
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421:optical disc
415:program for
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385:Available in
296:Developer(s)
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155:Please help
150:verification
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47:Please help
44:
605:2.50 added
538:CLOKSPL.EXE
308:(2008–2009)
303:(1999–2007)
260:August 2018
213:August 2018
763:2019-01-15
738:2019-01-15
662:References
535:CLCD32.DLL
532:CLCD16.DLL
481:blacklists
348:2008-05-02
183:newspapers
172:"SafeDisc"
95:improve it
50:improve it
1044:StarForce
976:PlayReady
954:LaserLock
549:.EXE and
498:Operation
99:verifying
56:talk page
1059:Category
1013:FairPlay
1008:Widevine
981:SafeDisc
925:Software
919:software
635:fair use
489:Y.A.S.U.
438:rights.
436:fair-use
408:SafeDisc
374:Platform
306:Trymedia
290:SafeDisc
18:Safedisc
1022:Related
986:SecuROM
932:CD-Cops
647:SecuROM
631:CloneCD
611:CloneCD
485:CureRom
442:History
388:English
346: (
321: (
250:updated
197:scholar
93:Please
971:OpenMG
949:Denuvo
199:
192:
185:
178:
170:
1001:Janus
991:Tagès
411:is a
204:JSTOR
190:books
964:list
942:list
789:2019
709:MPAA
607:ATIP
595:game
588:game
584:game
555:game
551:game
547:game
487:and
475:and
394:Type
323:1998
316:1998
176:news
758:IGN
705:EFF
379:x86
159:by
97:by
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201:·
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
