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    Secondary Liability:Aimster

    William Fisher

    2010. This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike License.

    To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/2.0/ or send a letter to

    Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.

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    Aimster Technology

    !Like Napster, uses a combination of a centralserver and free, downloaded software

    !

    The system piggybacks on AOLs InstantMessaging System

    !Encryption prevents operators from knowing thecontents of shared files

    !

    Online tutorials teach uses of the system,emphasizing exchange of copyrighted soundrecordings

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    Secondary Liability in Copyright!

    Contributory Infringementrequires

    " Direct infringement

    " Knowledge (actual orconstructive) by the

    defendant" Material contribution

    !Vicarious Infringementrequires

    "

    Direct infringement" Financial interest in the

    infringement

    " Right and ability tosupervise the direct

    infringer

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    Secondary Liability in Copyright!

    Contributory Infringementrequires

    " Direct infringement

    " Knowledge (actual orconstructive) by the

    defendant" Material contribution

    !Vicarious Infringementrequires

    "

    Direct infringement" Financial interest in the

    infringement

    " Right and ability tosupervise the direct

    infringer

    !

    Aimster: CI because:

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    Secondary Liability in Copyright!

    Contributory Infringementrequires

    " Direct infringement

    " Knowledge (actual orconstructive) by the

    defendant" Material contribution

    !Vicarious Infringementrequires

    "

    Direct infringement" Financial interest in the

    infringement

    " Right and ability tosupervise the directinfringer

    !

    Aimster: CI because:" Ds failed to establish any

    legitimate uses of thesystems: COSNU defenseinapplicable

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    Secondary Liability in Copyright!

    Contributory Infringementrequires

    " Direct infringement

    " Knowledge (actual orconstructive) by the

    defendant" Material contribution

    !Vicarious Infringementrequires

    "

    Direct infringement" Financial interest in the

    infringement

    " Right and ability tosupervise the directinfringer

    !

    Aimster: CI because:" Ds failed to establish any

    legitimate uses of thesystems: COSNU defenseinapplicable

    " Willful blindnessconstitutes knowledge

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    Secondary Liability in Copyright!

    Contributory Infringementrequires

    " Direct infringement

    " Knowledge (actual orconstructive) by the

    defendant" Material contribution

    !Vicarious Infringementrequires

    " Direct infringement

    " Financial interest in theinfringement

    " Right and ability tosupervise the directinfringer

    !

    Aimster: CI because:" Ds failed to establish any

    legitimate uses of thesystems: COSNU defenseinapplicable

    " Willful blindnessconstitutes knowledge

    " Ds actively encouragedinfringement

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    Secondary Liability in Copyright!

    Contributory Infringementrequires

    " Direct infringement

    " Knowledge (actual orconstructive) by the

    defendant" Material contribution

    !Vicarious Infringementrequires

    " Direct infringement

    " Financial interest in theinfringement

    " Right and ability tosupervise the directinfringer

    !

    Aimster: CI because:" Ds failed to establish any

    legitimate uses of thesystems: COSNU defenseinapplicable

    " Willful blindnessconstitutes knowledge

    " Ds actively encouragedinfringement

    !Aimster: VI uncertainbecause:

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    Secondary Liability in Copyright!

    Contributory Infringementrequires

    " Direct infringement

    " Knowledge (actual orconstructive) by the

    defendant" Material contribution

    !Vicarious Infringementrequires

    " Direct infringement

    " Financial interest in theinfringement

    " Right and ability tosupervise the directinfringer

    !

    Aimster: CI because:" Ds failed to establish any

    legitimate uses of thesystems: COSNU defenseinapplicable

    " Willful blindnessconstitutes knowledge

    " Ds actively encouragedinfringement

    !Aimster: VI uncertainbecause:

    " Willful blindness maynot be sufficient to treat Dsas a principal

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    Aimsterdeviates from Sony

    !To trigger the COSNU defense, a defendant must

    demonstrate that its product has substantial

    noninfringing uses, not merely that it is capable ofsubstantial noninfringing uses

    !Even if the defendant makes such a showing, if the

    infringing uses are substantial, the defendant must

    also show that it would have beendisproportionately costly to design its product so

    as to eliminate or reduce the infringing uses


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