If rights holders don’t want their content to be used for the training of language models, they must attach a legally compliant, machine-readable usage reservation (TDM opt-out) to their content. “Effective immediately, all ebooks and audiobooks distributed by Bookwire,” the company says in its statement, “will be equipped with a TDM opt-out notice in ONIX data. Additionally, the TDM opt-out is stored in the metadata of all EPUBs that we deliver via the TDMRep protocol.” Source: Frankfurt Countdown: Bookwire Offers ‘Protection’ From Wrongful AI Usage