According to High-Def Digest, Sony recently released a research report with some surprising news: Blu-ray appears to be outselling HD-DVD.

Focusing on sales data for the week ending March 18 (the same week that Sony’s ‘Casino Royale’ smashed high-def records by shipping 100,00 units to retail), it should come as no surprise that the VideoScan numbers released by Sony are favorable to the studio, with five of its releases ranking among the top-selling next-gen discs that week.

The numbers that week were equally as impressive for Blu-ray, which outsold HD DVD by a ratio of 9:2, and dominated the list of top-selling next-gen discs — the HD DVD edition of ‘The Departed’ was the only HD DVD disc to appear among the top ten best selling high-def discs.

But while abstract ratios and percentages like these have been bandied about for several months now, the Sony report goes one step further, providing the first public release of hard sales figures for HD DVD and Blu-ray discs from Nielsen VideoScan, the home entertainment industry’s leading source for competitive sales data.

Among the numbers revealed: as of March 18, VideoScan put the cumulative number of Blu-ray titles sold since the format’s inception at 844,000 units, versus HD DVD at 708,600.

The article mentions those numbers don’t include some larger retailers, but still, 844K? 708.6K? Doesn’t look like regular old DVDs are going anywhere anytime soon.

General, The News, On DVD, A/V Club