HBO and New Line follow Time Warner and go exclusively to Blu-Ray.

Source - http://news.teamxbox.com/xbox/15432/HBO-New-Line-Switch-to-Bluray-Exclusivity/ 

old

This is hardly surprising as they are both Warner subsidiaries. Would anyone expect anything different?

It would be really funny if they both switched to HD DVD.

New Line is old, HBO was today.

This is expected. New Line Pictures and H.B.O. are subsidiary companies of Time Warner.

Yeah , HBO was expected ... still many movie series bufs will go now blu to , because of titles like 6 feet under and Rome :D

So, what's left for HD-DVD........?

I'm afraid this format war is coming to an end, with Blu-Ray as its winner.

One could say Blu-Ray has the edge now, but I think there's a market for DVD players that support both. That could effectively kill the format war. I saw one priced for around $400 or $600, though it hasn't hit the market yet. I wish I still had the link.