Public Record: "includes any writing containing information relating to the conduct of the public's business, prepared, owned, used, or retained by any state or local agency regardless of physical form or characteristics." Government Code Section 6252(d).

Writing: "handwriting, typewriting, printing, photostatting, photographing, and every other means of recording upon any form of communication or representation, including letters, words, pictures, sounds or symbols, or combination thereof, and all papers, maps, magnetic or paper tapes, photographic films and prints, magnetic or punched cards, discs, drums, and other documents." Government Code Section 6252(e).