“Toshiba believes a single format for next generation DVD is most beneficial for consumers, and we are actively participating in talks towards format unification. At this point, however, no decision has been made for unification on any basis. The indication that a unification agreement on the basis of a 0.1 mm disc system (proposed by the Blu-ray Disc format supporters such as Sony) is imminent is unfounded and erroneous. Given this, Toshiba does not intend to make any proposal on unification to the members of the HD DVD Promotion Group.”
So no agreement has been made unfortunately. Toshiba is still empahsizing that “the key factors for a unified format are large capacity, reasonable cost, and backward compatibility with DVD”. The problem there may be the backwards compatibility with DVD’s on a Blu-Ray machine.
Source: Masayuki Arai, Nikkei Electronics