 Before the March 16, 2009 hearing the DVD Copy Control Association, Inc. wrote to U.S. District Judge Marilyn Hall Patel that RealNetworks had destroyed critical pieces of evidence and that this had irrevocably damaged the integrity of the judicial process.The claim was that RealNetworks knew from the start that what they were producing had a high likelihood of resulting in legal action so the company took measures to cover its tracks along the way.The documentation of this released to the public was heavily redacted, however it indicated that RealNetworks intentionally eliminated engineering notebooks, code files, and documents that pointed to the fact that the RealDVD software was mainly produced by hackers.