US Justice Department subpoenas Sony over anti-trust violations

 U.S. optical disc drive operations of Sony Corporation are under the probe of the regulators for possible violations of anti-trust laws. The company reported that it had received a subpoena from the U.S. Department of Justice's antitrust division.

Sony Optiarc America supplies a lineup of optical disc drives, including those for DVDs, CD-ROMs, CD-Rs and Blu-ray discs.

"Other countries are also seeking information on the state of competition in optical disc drives," Sony spokesperson said.

Sony declined to provide further details on which countries and whether or not Sony was a subject of other probes, refusing also to comment on what products were under investigation and whether or not blu-ray was included in the investigation.