What is the difference between "My recording" and "Research source"?

It tells BookyAI whose words a recording holds. "My recording" is your own podcast, talk, interview or voice memo: the book is written from your words, stories and phrasing. "Research source" is someone else's video or podcast that you use to learn a subject: the book takes the facts and the questions people care about, credits the source, and is written in your own words, angle and structure. It never reproduces or closely paraphrases the source, and never retells the speaker's personal stories as yours. Links (YouTube, podcast feeds, direct audio links) are filed as research sources by default, files and microphone takes as your recordings. Change it in the transcript viewer (the selector at the top) or next to the recording in the Codex, Knowledge tab. If the channel or show is yours, switch it to "My recording".