RT @frank_rieger: Schönes Interview mit @Mittenzwei über DRM: "Marktanteile an Tauschbörsen verlieren" http://grin.to/U9ibQ #drm
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RT @frank_rieger: Schönes Interview mit @Mittenzwei über DRM: "Marktanteile an Tauschbörsen verlieren" http://grin.to/U9ibQ #drm