This excerpt taken from the WDC 8-K filed Nov 19, 2007.
Stock Purchase Rights and Stock Options
On February 15, 2007, the Companys Compensation Committee of its Board of Directors approved the grant of a total of 380,854 stock purchase rights with an exercise price of $0.01 to employees. Of this total, 313,881 was to non-officers and 66,973 was to officers. The vesting for the stock purchase rights granted is one-third at the end of each of the first three anniversaries of the date of grant, subject to the employee continuing to be a service provider. In addition, 180,819 stock options were granted to officers with an exercise price of $32.10. The vesting for the stock options granted is one-third at the end of the first anniversary of the date of grant and 1/24th each month thereafter.