Last month, I wrote that sales of Blu-ray movies had significantly outpaced sales of HD DVD movies in early January. That trend shows no sign of changing. InformationWeek quotes VideoScan numbers that say sales of Blu-ray movies accounted for more than 60% of the high-definition movie market between January 1st and February 18-the latest date for which figures are available. Blu-ray's market share has oscillated between 63.3% and 69.6% over that time period, and in the week ending February 18, the format's slice of the market sat at a cool 65%. InformationWeek also reports that HD DVD had the upper hand between November 19 and December 17, but that Sony's format started pulling ahead in the week before Christmas-presumably thanks to the company's PlayStation 3 console, which has built-in Blu-ray support. Sony also has the support of MGM, 20th Century Fox, and Walt Disney Pictures, which all offer high-definition movies exclusively in the Blu-ray format.