Hachette Book Group announced it is changing its model for digital product sales to libraries. Starting July 1, the publisher will shift from perpetual ownership of e-books and digital audiobooks to “a two-year metered model.” In their version, those materials can be lent, an unlimited number of times, on a one-user-per-copy basis, for two years before the access expires. (Some publishers limit the total checkouts as well.) HBG says the change “will result in lower prices for the vast majority of our titles to the library market,” though as with other publishers the library pricing will still be significantly higher […]