Item 4.01. Changes in Registrant's Certifying Accountant.

a) On May 21, 2009, the Audit Committee (the "Audit Committee") of the Board of Directors of DDi Corp. (the "Company") dismissed PricewaterhouseCoopers LLP ("PwC") as the Company's independent registered public accounting firm.

PwC's audit reports on the Company's consolidated financial statements as of and for the fiscal years ended December 31, 2008 and December 31, 2007, did not contain an adverse opinion or a disclaimer of opinion and were not qualified or modified as to uncertainty, audit scope or accounting principles.

During the fiscal years ended December 31, 2008 and December 31, 2007, respectively, and through the subsequent interim period through May 21, 2009, there were (1) no disagreements between the Company and PwC on any matter of accounting principles or practices, financial statement disclosure or auditing scope or procedure, which disagreements, if not resolved to the satisfaction of PwC, would have caused PwC to make reference to the subject matter of the disagreement in their reports on the Company's financial statements for such years, and (2) no "reportable events" as that term is defined in Item 304(a)(1)(v) of Regulation S-K.

The Company provided PwC with a copy of the disclosures it is making in this Current Report on Form 8-K (the "Report") prior to the time the Report was filed with the Securities and Exchange Commission (the "SEC"). The Company requested that PwC furnish a letter addressed to the SEC stating whether or not it agrees with the statements made herein. A copy of PwC's letter dated May 26, 2009, is attached as Exhibit 16.1 hereto.

b) Also, effective May 21, 2009, the Audit Committee approved the appointment of Grant Thornton LLP ("Grant Thornton") as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2009. In deciding to appoint Grant Thornton, the Audit Committee reviewed auditor independence and existing commercial relationships with Grant Thornton, and concluded that Grant Thornton has no commercial relationship with the Company that would impair its independence. During the fiscal years ended December 31, 2008 and December 31, 2007, respectively, and in the subsequent interim period through May 21, 2009, neither the Company nor anyone acting on its behalf has consulted with Grant Thornton on any of the matters or events set forth in Item 304(a)(2) of Regulation S-K.

Item 9.01. Financial Statements and Exhibits.

Exhibit No. Description
16.1 Letter of PricewaterhouseCoopers LLP dated May 26, 2009.

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