As frequently predicted, Blu-ray hasn't been enough to make up for sagging DVD sales, as a new Screen Digest report indicates a 4.8 percent slide worldwide last year, falling more than $2.6 billion. After plateauing approaching 2007, disc sales have been falling ever since and even Blu-ray's $482 million contribution can't hold up the slack. Still, it's looking at online rentals like Lovefilm and Quickflix to make up for some of the rental losses internationally, but don't expect Blu-ray to help grow the market at all until at least 2010. Of course, the company did also predict the format war would remain stalemated just weeks before Warner ended the whole thing, so we'd keep a grain of salt handy while reading.

[Via Financial Times]