EXHIBIT 11.1 RIMAGE CORPORATION COMPUTATION OF NET EARNINGS PER SHARE OF COMMON STOCK Proforma net earnings per common share is determined by dividing the net earnings by the weighted average number of shares of common stock and common share equivalents outstanding. The following is a summary of the weighted average common shares outstanding and common share equivalents: THREE MONTHS ENDED MARCH 31, ------------------ 1996 1995 --------- --------- Shares Outstanding at beginning of period (prior to merger) - 1,950,000 Common stock issued in merger with Dunhill Software Services - 1,100,000 ---------- ---------- Shares Outstanding at beginning of period 3,051,000 3,050,000 ---------- ---------- Common stock issued in stock option exercise 18,000 - Shares Outstanding at end of period 3,069,000 3,050,000 ---------- ---------- ---------- ---------- Weighted average shares of common stock outstanding 3,056,621 3,050,000 ---------- ---------- ---------- ---------- **Common stock equivalents 412,953 846,455 Weighted average shares of common stock equivalents 28,929 18,677 ---------- ---------- ---------- ---------- Weighted average shares of common stock and stock equivalents 3,085,550 3,068,677 ---------- ---------- ---------- ---------- Proforma net earnings $47,475 $173,099 ---------- ---------- ---------- ---------- Proforma net earnings per share $0.02 $0.06 ---------- ---------- ---------- ---------- ** Included as common stock equivalents for the quarter ended March 31, 1995 are 540,000 warrants which expired on July 20, 1995