STOCK BASED COMPENSATION

Effective October 30, 2006 the Company adopted the following stock option and stock bonus plans.

Incentive Stock Option Plan . The Company’s Incentive Stock Option Plan authorizes the issuance of shares of its Common Stock to persons that exercise options granted pursuant to the Plan. Only employees may be granted options pursuant to the Incentive Stock Option Plan. The option exercise price is determined by its directors but cannot be less than the market price of its common stock on the date the option is granted. The Company has reserved 1,000,000 common shares under this plan. No options have been issued under this plan as at November 30, 2011.

Non-Qualified Stock Option Plan . SDI’s Non-Qualified Stock Option Plan authorizes the issuance of shares of its Common Stock to persons that exercise options granted pursuant to the Plans. SDI’s employees, directors, officers, consultants and advisors are eligible to be granted options pursuant to the Plans, provided however that bona fide services must be rendered by such consultants or advisors and such services must not be in connection with the offer or sale of securities in a capital-raising transaction. By a resolution of the Board of Directors, the Company amended this plan to increase the number of common shares available under this plan from 2,250,000 to 4,500,000 effective October 10, 2007. The Company further amended its Non-Qualified Stock Option Plan to increase the number of Common Shares available under this plan to 5,000,000 and filed an S-8 registration statement on April 10, 2008.

Stock Bonus Plan . SDI’s Stock Bonus Plan allows for the issuance of shares of common stock to its employees, directors, officers, consultants and advisors. However bona fide services must be rendered by the consultants or advisors and such services must not be in connection with the offer or sale of securities in a capital-raising transaction. The Company has reserved 150,000 common shares under this plan. No options have been issued under this plan as at November 30, 2011.

Year ended November 30, 2011

The Company did not issue any options during the year ended November 30, 2011.

Year ended November 30, 2010

On December 4, 2009, the Company approved the reduction of the exercise price of 300,000 outstanding options which had earlier been issued at a price of $0.50 to a new option price of $0.25 per share, with all other terms of the original grant remaining the same. The Company expensed this additional non-cash stock based compensation expense relating to this modification for $6,534. The fair value of each option used for the purpose of estimating the stock compensation is calculated using the Black-Scholes option pricing model with the following weighted average assumptions:

On June 15, 2010, the board of directors granted options to a director to acquire 350,000 common shares, two directors to acquire 50,000 common shares each and to a consultant to acquire 35,000 common shares. All these 485,000 options were issued at an exercise price of $0.20 per share and vest immediately with an expiry term of five years. The Company expensed stock based compensation cost of $119,368. The fair value of each option used for the purpose of estimating the stock compensation is calculated using the Black-Scholes option pricing model with the following weighted average assumptions:

On October 1, 2010, the Board cancelled 300,000 options each for a total of 600,000 options issued to two consultants having an exercise price of $0.25 per share and expiring on June 30, 2014 and issued warrants to each to acquire 300,000 common shares exercisable at $0.20 per share for a total of 600,000 warrants with an expiry term of five years. The Company expensed this additional non-cash stock based compensation expense relating to this modification for $5,508. The fair value of each option used for the purpose of estimating the stock compensation is calculated using the Black-Scholes option pricing model with the following weighted average assumptions:

The weighted average remaining contractual term of the total outstanding, and the total exercisable options under the Non-Qualified Stock Option Plan were as follows: