Goodreads Librarians Group discussion

I do a lot of work with classic authors and as a result have spent a lot of time trying to identify public domain reprint editions for purposes of combining editions. My question is this:

Virtually every time I look up a book published by "General Books" on the publisher's website (which has a very handy feature allowing you to search by ISBN-13 number) it always turns out that the number of pages listed in the Goodreads entry is much, much, lower than the number of pages listed in the General Books website entry. And when I compare with the info in World Catalog for the original edition, it is the General Books number that generally seems to be in the right ballpark.

For example, for the book Eugenie Grandet, the Goodreads entry says 124 pp., while the General Books entry for the same ISBN-13 number () says 828 pp. The world catalog entry gives xiv + 383 + xiv + 389 + 4 leaves of plates, which adds up to a little less than General Books' 828 pages.

I get the same kind of results with virtually every General Books entry I've checked. The General Books entry always states at least twice, and sometimes (as above) as much as six or seven times as many pages as the Goodreads entry. I have been reluctant to correct the page numbers in the Goodreads entry, though, because the differences are so great, and the pattern so consistent, that I feel something must be going on of which I am unaware. Does anyone know what is going on with these books?

Just to add a little more information to this question: I checked the librarian change log for the book referenced above and a few others, and it appears that the apparently wildly wrong pages numbers all came from data imported from Ingram. The imports on the titles I checked recently are all quite recent. It seems to me, though, that I have seen these wrong numbers long before last month's Amazon transition. So I'm not convinced it's an Ingram-specific problem.