http://www.theregister.co.uk/2004/09/30/dvd_forum_logos_and_specs/

I'm concerned about data storage, we know blu-ray has bigger capacity. So the HD DVD Group is really serious to compete?

This week's approval follow last June's move to ratify the HD DVD-ROM physical spec., which defines 15GB single-layer media and 30GB dual-layer discs.

30Gigs? That was too small for many years to come.