premise: Upon the written request of the Disclosing Party, the Receiving Party will promptly return to the Disclosing Party or destroy all documents or other materials furnished by the Disclosing Party constituting Confidential Information, together with all copies thereof in the possession, custody or control of the Receiving Party, without retaining any copies.  Any destruction must be confirmed by the Receiving Party to the Disclosing Party in writing.  Notwithstanding anything to the contrary set forth herein, the Receiving Party is not required to return or destroy computer files stored in the ordinary course of its business as a result of automated back-up procedures (subject, however, to the confidentiality restrictions set forth herein).