A rep for Mel Gibson's ex-girlfriend Oksana Grigorieva tells Entertainment Tonight that she did not release explosive audio tapes purported to be of Gibson unleashing a verbal tirade against Grigorieva. He also addresses whether the tapes have been edited.

Steve Jaffe, who represents Grigorieva, tells ET that the tapes were not edited, calling the reports that suggest they were edited "ridiculous."

Jaffe could not comment further regarding the custody case or investigation of the Oscar winning star.

Related stories: Hollywood Reacts to Mel Gibson's Alleged Rants  The Mel Gibson Controversy: Who Is Oksana Grigorieva?