found this on C-Net

Blu-ray would seem to have the advantage here. With the exception of Universal, every major Hollywood studio has pledged to release movies in the Blu-ray format. By comparison, only Warner, Universal, Paramount, and Europe's Studio Canal will be releasing on HD-DVD. That means that HD-DVD owners won't find any of their favorite Columbia, MGM, Fox, or Disney movies available in high-def. That said, it seems likely that neither format will have more than a few hundred titles available by the end of 2006. The good news? Thanks to the fact that Netflix will be stocking both HD-DVD and Blu-ray titles, your financial exposure can be limited to just the hardware--and a monthly membership fee.