Edu Replay / What a Recording Is
Made for the absent, or made to be studied: two different objects
One purpose asks for completeness, the other asks for selection, and the two pull apart quickly.
A recording made for people who could not attend has a simple obligation: leave nothing out, because the viewer's problem is absence and the remedy is coverage. Completeness is the whole point. Gaps are failures. If a question was asked and answered, the answer should be there. Under this purpose the raw file is close to correct, and the main duty is to make sure it exists and can be reached.
A recording made to be studied, revisited across a term, returned to before an assessment, has a different obligation entirely. Here completeness is a burden. The viewer does not need the housekeeping at the start, the technical delay in the middle, or the extended discussion of a scheduling change. They need the ideas, in retrievable pieces, with enough context to make each piece stand on its own. The remedy is selection, and selection means someone has to decide what matters, which is genuine intellectual work.
Most institutions have quietly promised both and delivered only the first. The catch-up artefact is produced automatically and the study artefact is not produced at all, though it is the one students describe wanting when they are asked. Recognising that these are two objects, not one object serving two audiences, is the point at which useful decisions become possible. It is entirely reasonable to keep the full record and derive something shorter and sharper from it. What is not reasonable is to pretend the first is already the second.