1. Evaluating New Copy-Protection Techniques for Audio CDs J. A. Halderman, 2002 ACM Workshop on Digital Rights Management (DRM 2002). Available at http://crypto.stanford.edu/DRM2002/halderman_drm2002_pp.ps, March 2003 http://crypto.stanford.edu/DRM2002/halderman_drm2002_pp.ps Presented by Matthew Bolitho (mbol003@ec.auckland.ac.nz)

2. Paper Overview Discusses background of issues related to digital recording duplication Discusses background of issues related to digital recording duplication Evaluates the effectiveness of three different copy protection mechanisms Evaluates the effectiveness of three different copy protection mechanisms Provides a technical explanation of how these copy protection mechanisms work Provides a technical explanation of how these copy protection mechanisms work

3. Audio CD copy protection Goal: Stop digital duplication of CD audio Goal: Stop digital duplication of CD audio CDROM drives vs. CD players CDROM drives vs. CD players Copy protection by exploiting “bugs” in CDROM drives and computer software Copy protection by exploiting “bugs” in CDROM drives and computer software

4. Critical comment: Experimental design Experimental goal: To show effectiveness of copy protection Experimental goal: To show effectiveness of copy protection Experiment only used one CD with each type of copy protection Experiment only used one CD with each type of copy protection Experiment only used common consumer software Experiment only used common consumer software

5. Appreciative Comment: Important Issues Paper raises many issues surrounding the use of copy protection Paper raises many issues surrounding the use of copy protection Right to fair use Right to fair use Limited term of copyright vs. infinite life of copy protection Limited term of copyright vs. infinite life of copy protection

6. Appreciative Comment: Technical Analysis Paper offers a detailed analysis of how copy protection works Paper offers a detailed analysis of how copy protection works Allows hardware and software to be adapted to increase compatibility with CP CDs Allows hardware and software to be adapted to increase compatibility with CP CDs

7. Points for discussion Legal/Ethical issues Legal/Ethical issues Should record companies be able to prevent fair use? Should record companies be able to prevent fair use? That takes away the right of a consumer to fair-use Aren’t record companies and artists allowed to protect their intellectual property?