In the world of hip-hop few music executives have more influence than DJ Drama. His “Gangsta Grillz” compilations have helped define this decade’s Southern rap explosion. He has been instrumental in the careers of rappers like Young Jeezy and Lil Wayne. He appears on the cover of the March issue of the hip-hop magazine XXL, alongside his friend and business partner T.I., the top-selling rapper of 2006. And later this year DJ Drama is scheduled to make his Atlantic Records debut with “Gangsta Grillz: The Album.”

Now DJ Drama is yet another symbol of the music industry’s turmoil and confusion.

On Tuesday night he was arrested with Don Cannon, a protégé. The police, working with the Recording Industry Association of America, raided his office, at 147 Walker Street in Atlanta. The association makes no distinction between counterfeit CDs and unlicensed compilations like those that DJ Drama is known for. So the police confiscated 81,000 discs, four vehicles, recording gear, and “other assets that are proceeds of a pattern of illegal activity,” said Chief Jeffrey C. Baker, from the Morrow, Ga., police department, which participated in the raid.

DJ Drama (whose real name is Tyree Simmons) and Mr. Cannon were each charged with a felony violation of Georgia’s Racketeering Influenced Corrupt Organization law (known as RICO) and held on $100,000 bond. Read Brenda Goodman’s full report at NYtimes.com