How to turn a lecture recording into study material

A recorded lecture is the least efficient study asset you own. It's two hours long, you can't skim it, and re-watching at 1.5x still costs most of an afternoon. The move is to convert it once into something you can drill in twenty-minute bursts.

Why re-watching is a trap

Re-watching feels like studying because it's effortful and familiar — the same illusion that makes re-reading feel productive. It isn't. As we covered in active recall vs re-reading, recognising material on screen is not the same as producing it from memory, and the exam only tests the second one.

The workflow that actually works

1. Transcribe once. Turn the audio or video into text — either upload the file or, for a recorded class on YouTube, paste the link. SGK handles YouTube lectures and audio uploads directly.
2. Generate source-anchored notes. Get a structured outline where every point links back to the timestamp it came from, so you can jump to the moment the professor said it.
3. Drill, don't review. Use the auto-generated flashcards and quiz questions instead of scrubbing back through the recording.

Why timestamps matter

The risk with any AI transcript is that the model embellishes — a mumbled aside becomes a confident claim that was never made. Binding each note and question to a timestamp means you can verify it in one click, the same principle behind catching fabricated flashcards. When a quiz question surprises you, you jump straight to the second of audio it's drawn from instead of wondering whether the tool made it up.

Do this once per lecture and a semester of recordings becomes a stack of study packs you can cycle through the week before finals.