Oh wow, I had forgotten all that. So he was a racist after all. (Fuhrman)
Yaelle, you need to understand the concept of those tapes. He was working with a female screen writer (someone he ended up having a relationship with) and he was giving her the kind of language he thought she was looking for in her screenplay.
It was role-playing. Those tapes aren’t a confession of guilt or anything even close to it. If you go to the link it describes the content of the tapes as a fictional character role playing.
Fact is, yeah, it made it easy for them. But they would have brought the tapes into play no matter whether he said he didn’t or couldn’t remember.
He regretted even making those tapes, but when he did it he was doing it for a movie screenplay.