0B. Sources of information (General Rules)
Because data must often be taken from sources other than the item itself, no explicit distinction is made between information from a "chief source" and from other sources.* There is no attempt to assign greater credence to information taken from one source rather than from another. This concept is not appropriate for archival moving image materials.
Take information from the item itself, accompanying material (e.g., scripts, shot lists, production records, publicity material, inventory lists, synopses, etc.), the container (if not an intregal part of the piece), or other sources (standard and special moving image reference tools).
Do not bracket any information from the item itself, its container, accompanying material, or secondary sources. Bracket only information supplied by the cataloger. If no information can be found regarding a title, the film itself must be the only source of information. If no title appears on the film, the container, or in any secondary sources, the cataloger must supply a descriptive title and enclose it in brackets. See 1F2.
*Note: The current practice in many archives is to give notes citing the source of information that does not appear on the item itself, thereby machine clear to users/researchers the source of information appearing in the catalog record. Regardless of whether the information appears on the item or not, notes are also given when any additional explanation is necessary, e.g., there is conflicting information, inaccuracies, ambiguity, etc. See the instructions that follow. Experience has shown that citing information that does not appear on the item eliminates frustrating arguments with users and the costly process of reverifying data. This practice has been incorporated into the rules that follow. Individual archives may choose to set their own policy for recording the sources of information.
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