Exhibit 11.1 SONIC SOLUTIONS STATEMENT RE: COMPUTATION OF PER SHARE AMOUNTS Three and Six Months Ended September 30, 1996 and 1997 (In thousands, except per share amounts - unaudited) Three Months Ended Six Months Ended --------------------- ---------------------- September 30, September 30, --------------------- ---------------------- 1996 1997 1996 1997 ------ ------- ------ ------- Net loss..................................................... ($674) (1,453) ($3,023) (1,858) ====== ====== ======= ====== Weighted average number of common shares outstanding......... 7,524 7,614 7,514 7,605 ====== ====== ======= ====== Net loss per share........................................... ($0.09) (0.19) ($0.40) (0.24) ====== ====== ======= ====== 17