This excerpt taken from the DIS 8-K filed Mar 10, 2005.
Calculation Agents; Calculation Date. Unless otherwise specified in an applicable Pricing Supplement, the Trustee will be the Calculation Agent with respect to all Floating Rate Notes. Upon the request of the holder of any Floating Rate Note, the Trustee will provide the interest rate then in effect and, if determined, the interest rate that will become effective as a result of a determination made for the next Interest Reset Date with respect to such Floating Rate Note. If at any time the Trustee is not the Calculation Agent, the Company will notify the Trustee of each determination of the interest rate applicable to any such Floating Rate Note promptly after such determination is made by any successor Calculation Agent. The Calculation Date, where applicable, pertaining to any Interest Determination Date is the date by which the applicable interest rate must be calculated and will be the earlier of (a) the tenth calendar day after such Interest Determination Date, or, if any such day is not a Business Day, the next succeeding Business Day and (b) the Business Day preceding the applicable Interest Payment Date or Maturity Date, as the case may be.