Intriguingly, Brown claims that the attendee who gave him the tape of the speech met Steve Jobs at the conference. "During their interaction, Steve Jobs gave him something to put in a time capsule that was buried at the conference. To our knowledge this time capsule has yet to be dug up."

Other highlights of the recording include Jobs prediction that people would soon be spending more time interacting with computers than they do with cars, and his comment that voice recognition is a difficult thing to master. "This stuff is hard," he said.

To listen to the recording, visit .

See also: