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[[File:Eidos.jpg|256px|thumb|right|Eidos Interactive Logo]]
==General Information==


DRM almost universally used by games released by Eidos interactive relying on a fake TOC and dummy files.  
DRM used by and most likely made by Eidos Interactive as well as a few publishers they partnered with. It's currently unknown where the name "CD-Lock" came from but most likely not the official name of the DRM.


Non-mixed mode discs with this DRM will always have 4 tracks [https://redump.info/disc/122847/ (example)]. Two Audio and two Data surrounding them and if the later Data Track is missing, DRM will either be remnant or a false positive from BoS. 
==Identification==


Note that [/Bitpool Bitpool] protected discs often have an identical configuration. What sets CD-Lock apart though is the lack of any EDC errors as the DRM is based around a fake TOC instead.
Non-mixed mode discs with this DRM will always have 4 tracks [https://redump.info/disc/122847/ (example)]. Two Audio and two Data surrounding them and if present. Track 4 will have 75 sectors with invalid sync and many MSF errors.
 
The DRM itself makes use of a fake TOC and a series of dummy files called ".VPP", all of which should be way too large to actually fit on the disc. 
 
==Dumping==
 
Dump it like a normal CD.
 
==Additional Information==
 
[[Bitpool]] protected discs will often have an identical track configuration as CD-Lock. What sets CD-Lock apart though is the lack of any EDC errors as the DRM is based around a fake TOC instead.
 
Identification using BoS is a bit sketchy at the moment, and program will sometimes report a false positive on discs that lack it.  


[[Category:Copy Protection Guides| ]]
[[Category:Copy Protection Guides| ]]

Latest revision as of 12:09, 5 August 2026

Eidos Interactive Logo

General Information

DRM used by and most likely made by Eidos Interactive as well as a few publishers they partnered with. It's currently unknown where the name "CD-Lock" came from but most likely not the official name of the DRM.

Identification

Non-mixed mode discs with this DRM will always have 4 tracks (example). Two Audio and two Data surrounding them and if present. Track 4 will have 75 sectors with invalid sync and many MSF errors.

The DRM itself makes use of a fake TOC and a series of dummy files called ".VPP", all of which should be way too large to actually fit on the disc.

Dumping

Dump it like a normal CD.

Additional Information

Bitpool protected discs will often have an identical track configuration as CD-Lock. What sets CD-Lock apart though is the lack of any EDC errors as the DRM is based around a fake TOC instead.

Identification using BoS is a bit sketchy at the moment, and program will sometimes report a false positive on discs that lack it.