Amazon.com and other critics who opposed Google Inc.'s first proposed book settlement are weighing in with objections to the revised deal, too.

Amazon said the revised agreement "continues to give Google exclusive rights likely to lead to a monopoly" in its objection filed Wednesday.

A group of academic authors led by University of California-Berkeley professor Pam Samuelson also filed an objection, saying, "We do not believe that the settlement of a class-action lawsuit is a proper way to make such a profound set of changes in rights of authors and publishers, in markets for books, and procedures for resolving disputes as the (settlement) would bring about."

The deadline for comments on the settlement was Thursday. U.S. District Court Judge Hon. Denny Chin has scheduled a fairness hearing for Feb. 18.

Under the revised $125 million settlement, Google has agreed to set up a Book Rights Registry that will compensate copyright holders whose works are scanned and available through Google Books. It would also try to identify rights holders of "orphan books" whose owners aren't known and distribute shares of unclaimed revenue from those works to charity after a period of time.

An earlier settlement was opposed by the U.S. government and others around the world, including France and Germany. The new deal only covers books published in the U.S., the United Kingdom, Australia and Canada.