Roeck treats the web browser not as a transparent window onto digital content but as an active rendering environment whose version, engine, plug-ins, policies and historical configuration materially condition what a website can become for a user. Her central contribution is to relocate authenticity from the file alone to the operational ecology that makes the file perceptible. The report therefore frames preservation as an environmental problem: an obsolete website may remain stored yet become functionally altered when interpreted by a contemporary browser. Browser emulation becomes a method for reconstructing the historically specific conditions under which digital form was executed, viewed and experienced. The conceptual operation is infrastructural rather than merely archival, because it identifies software surroundings as constitutive properties of the object. Roeck’s work bridges digital conservation with media archaeology by showing that technical intermediaries possess temporal specificity and that preserving access may require preserving, or reconstructing, the apparatus through which an object acquires visible form.