Judge asked to unseal documents in John Edwards sex-tape lawsuit

(CNN) - A group of media companies on Wednesday asked a North Carolina judge to unseal court documents in a lawsuit involving the John Edwards sex-tape case.

The motion by the media companies, which include CNN, does not seek public release of the sex tape or any intimate photos that might exist.

Instead, it argues that most details in the case already have been made public by the parties themselves, and therefore the motions and depositions so far should be public records as called for under North Carolina law.