Books with 0 total pages, or videos with 0 min runtime, can result in server errors when users try to update. This seems fixable with a 2 step approach:
Set up a script that runs a query on the db, to change anything with Total Pgs/Min: 0 to Total Pgs/Min: 1 (or another arbitrary number), and then flags those items for Librarian review
Librarians update page counts as they’re able
The two-step approach should help avoid overloading the Librarians, since the initial complication will be removed, this leaving the actual adjustments non-urgent.