This report, authored in 2003, presents an innovative approach to the management and utilization of audiovisual archives in the humanities and social sciences. Developed by the research team ESCoM, under the auspices of the Maison des Sciences de l'Homme (MSH) in Paris, this program predated platforms like YouTube and was groundbreaking in its vision for the digital preservation, segmentation, and classification of audiovisual content. Its objectives included creating a heritage of scientific knowledge, developing advanced tools for its annotation and reuse, and facilitating the dissemination of specialized research to a broad audience.At its core, the report outlines the development of an integrated environment that allows users to index, annotate, and classify audiovisual segments through personalized ontologies and thematic grids. The proposed methods rely on cutting-edge concepts, such as semantic web technologies, knowledge representation, and conceptual graph editing, to enable researchers and educators to create tailored archives and new multimedia resources. This forward-thinking approach aligns with modern practices of content reuse and republication, demonstrating a vision well ahead of its time.The program also emphasizes the importance of segmenting and indexing audiovisual materials based on user-defined criteria, enabling researchers to identify and highlight specific thematic or conceptual elements within a vast pool of data. By facilitating this level of granularity, the system supports personalized academic and professional applications, including multimedia presentations, educational resources, and research dissemination. It introduces tools such as enhanced media players, ontology builders, and annotation editors to make this process accessible and collaborative.Finally, the report discusses the Opales project, a collaborative initiative that exemplifies this innovative framework. The project developed a prototype environment integrating tools for creating ''hyper-documents'' and supporting multilingual, multi-platform content dissemination. Despite the technological and methodological challenges of the time, the report's vision of interactive, richly annotated audiovisual archives has set the stage for the development of contemporary digital knowledge ecosystems. Its emphasis on semantic representation and user-centric customization continues to resonate in the digital humanities today.