Rovi Corp, shares of the Santa Clara, CA digital entertainment firm are down 20c to $27.60 and option volume is 4x the daily averge. Driving the action was a the sale of 2,500 of the Dec. $25 puts at 65c and the purchase of 2,400 of the Dec. $30 betweenn the 90c-95c asking price. No prior open interest so this risk/reversal is likely new bullish position.