But that is kind of a simplistic analogy. The prosecution is not expected to hand over something as simple as 25 reports by Dr Doe. They are required to hand over nearly EVERYTHING they have from the past several years of their ongoing investigation---from detective's notes, investigative logs, phone records, digital info, all interviews, videos, audios, photos, expert testimonies, expert's reports, email correspondence, inner office memos if relevant, ALL prior suspects info, etc etc....
AND it is said by legal experts that the state should hand over everything and anything that 'might' be relevant, just in case. So the state cannot be expected to sit down and label each and every item within 30T items of Discovery.