I've learned a few new tricks for pulling up films in HOLLIS -- something which might be useful to you when the typical search strategy -- words + format=Visual doesn't produce what you expect, suspect is out there, or need to find.
You can consider these tips authoritative: they come from master cataloger Betsy Eggleston, who serves with me on the MetaPac committee.
According to the Bib Standards Committee, films should always be given a designated form/genre. The applications are not always consistent, as the list below makes painfully clear. Some HOLLIS items carry more than one these form/genre label (e.g., DVD video discs and feature films) so the numbers under each heading do not necessarily identify unique items.
DVD (50+): actual number in catalog is 13976.
DVD-video (3)
DVD video discs (50+):13556. Limiting to Lamont registers 1452 items this way, but only Marty will know how accurate that count is.
DVD-Video disc (1)
DVD Videodiscs(50+): actually, only 80 items have this variant.
Videodiscs (50+): items entered this way currently total 805.
Videocassettes (50+): 4988 items.
Videotapes (50+): 14950.
Things get interesting when you try some other combinations:
kw DVD + format=visual retrieves 14696 items.
kw videorecording + format=visual retrieves 5825.
kw feature films + format=visual retrieves 8243.
kw motion pictures + format=visual retrieves 3448.
kw films + format=visual retrieves 13826.
kw feature + format=visual retrieves 8343.
The current (or recent) thinking among catalogers, apparently, is that since IMDB (and other online tools) do their thing so well, users should search there, find a title, and then turn to HOLLIS for local holdings.
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