![[info]](http://l-stat.livejournal.com/img/userinfo.gif?v=92.2){kind=small}
HD DVD: authorized copies allowed, hybrid (old DVD) support, lower production cost, low replication cost, higher storage (30GB), better interactivity standards on XML, Intel and Microsoft support.
Blue-Ray: none of these, Disney and Sony support, but get this - only 25GB storage as claimed in this article below.
http://www.tomshardware.com/hardnews/20
