A judge wants Florida shipwreck explorers and the Spanish government to settle their differences over sharing evidence related to an estimated $500 million in treasure the company recovered last year.

In Tampa, U.S. Magistrate Judge Mark Pizzo told lawyers for Odyssey Marine Exploration and Spain to agree by Friday _ or he will be forced to intervene.

Spain believes it has a claim to the 17 tons of colonial-era coins Odyssey raised from an Atlantic Ocean shipwreck. But Odyssey has kept most details of the find secret to protect the site from competitors.

The two sides bickered in a hearing Wednesday over whether Tampa-based Odyssey has handed over sufficient information about the wreck site and treasure for Spain to determine the extent of a possible claim.