PurposeThe purpose of this paper is to propose the need for an integrated system for the production, authoring, addition and revision of webcast content and a multi-device apps mechanism with rights management for Internet transmission in the perspective of the OUJ course reuse.Design/methodology/approachThis paper designs systems that reuse the existing OUJ courses from the viewpoint of effective utilization, combine broadcasting lectures and online lectures of the OUJ courses and seamlessly link them as media-mix contents. In contrast to content development methodologies that assume embedded content production, this paper’s methodology takes an approach to producing and authoring webcasting content, flexibly adding and revising the content and transmitting that content over the internet via multi-device apps, taking rights management into account.FindingsThere is concern about the ELSI arising from the use of generative AI. It is directed at web content. This paper can contribute to resolving the ELSI surrounding the use of generative AI because it discusses a method of learning content development that clarifies the attribution of rights to content.Originality/valueThe originality of this paper lies in the fact that it is oriented to reuse existing lectures of the OUJ courses and simplify the rights clearance for them, from the perspective of the learning ecosystem. The value of this paper is that it can also serve as a technical and legal response to the production, authoring and Internet transmission of open university courses in the era of generative AI.