The Digital Preservation Coalition (DPC) is an advocate and catalyst for digital preservation, ensuring our members can deliver resilient long-term access to digital content and services. It is a not-forprofit membership organization whose primary objective is to raise awareness of the importance of the preservation of digital material and the attendant strategic, cultural and technological issues. It supports its members through knowledge exchange, capacity building, assurance, advocacy and

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... tnership. The DPC's vision is to make our digital memory accessible tomorrow. The DPC Technology Watch Reports identify, delineate, monitor and address topics that have a major bearing on ensuring our collected digital memory will be for the future. They provide an advanced introduction in order to support those charged with ensuring a robust digital memory, and they are of general interest to a wide and international audience with interests in computing, information management, collections management and technology. The reports are commissioned after consultation among DPC members about shared priorities and challenges; they are commissioned from experts; and they are thoroughly scrutinized by peers before being released. The authors are asked to provide reports that are informed, current, concise and balanced; that lower the barriers to participation in digital preservation; and that are of wide utility. The reports are a distinctive and lasting contribution to the dissemination of good practice in digital preservation. This report is published by the DPC with the support of the Research & Practice Subcommittee who provide editorial oversight. It was written by Ashley Blewer, archivist, developer and technologist, specializing in video preservation, digital repository management, infrastructure/community building, computer-to-human interpretation, and teaching technical concepts.