Rosetta Stone 2009 Annual Report Download - page 116

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Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in the Registration Statement No. 333-158828 on Form S-8 of our report dated March 9, 2010, relating to
the consolidated financial statements of Rosetta Stone Inc. and subsidiaries (which report expresses an unqualified opinion and includes an explanatory
paragraph regarding the Company's adoption of a new accounting standard), appearing in this Annual Report on Form 10-K of Rosetta Stone Inc. and
subsidiaries for the year ended December 31, 2009.
/s/ DELOITTE & TOUCHE LLP
McLean, Virginia
March 9, 2010