Universities invest considerable time and resource in developing high-quality media for teaching and learning, so it’s important that these materials are sustainable and reusable and can reach the widest number of students and learners. However, use of media resources can be limited by copyright restrictions. Media that includes licensed third-party content, such as images, audio and music, may be used only in closed teaching spaces, for a fixed period of time, or with a limited number of learners. A great way to ensure that your teaching and learning media can be widely reused in a broad range of contexts, without concerns about infringing copyright, is to develop them as open educational resources (OER).