Wednesday, February 20, 2008 Formats supported by U.S. studios (size relative to 2007 box office receipts) The battle between the two high definition optical disc formats, Blu-ray and HD DVD has ended after sole HD DVD manufacturer Toshiba has announced it will no longer produce HD DVD players. In a press conference yesterday, Toshiba president Atsutoshi Nishida announced and confirmed that Toshiba will terminate the R&D plan on HD-DVD products.