It looks like BD is losing ground to DVD, even when you only take into account the top 20 which mitigates DVD's library advantage. As of the last week, Nelson had BD down to 8% market share -- significantly lower than antipcated by Sony.
It may grow after the holiday selling season, if sales are slow and prices are cut more aggressively.
Arstechnica notes: And HD movie and TV downloads are becoming more popular than ever—many of them are even free, thanks to ad-supported streaming—and the short-term outlook for Blu-ray looks a little grim.
Why do you think BD isn't being adopted? Certainly there are people out there who want HD content and are willing to pay a premium for it, although I doubt it will be more than 50% of the market anytime soon. Do you think BD will ever reach the 50% number that Sony claimed they'd have by the end of 2008?