If you were not aware of it warner's decision was claimed to be based on sales of it's blu-ray and Hd-DVD disks they did publish both formats and wanted to choose the most popular one.
And from this website which tracks amazon's sales charts for hd formats
http://www.eproductwars.com/dvd/index.cfm
Every Blu-ray title outsold it's HD-DVD counterpart by a considerable advantage on amazon and probably elsewhere too so they droped the loosing format.
Now paramount and universal have joined blu-ray expect sales of PS3 just as a player to be over 5 million this year alone.
Sony should sell a 40gig -PS3 pack with a Blu-ray remote control specifically aimed at these new customers. (mabey even drop the sixaxis from the pack).
PS3 number 1 fan