[an error occurred while processing this directive] BBC News
watch One-Minute World News Last Updated: Wednesday, 19 April
2006, 10:22 GMT 11:22 UK Next-generation DVD battle begins Rival
DVD format stands The two DVD formats are battling for supremacy
The first HD DVD players and discs have gone on sale in the US.
The release marks the start of the format wars between the
Toshiba-led HD DVD and the Sony-led Blu-ray systems.  The first
Blu-ray discs are expected in late May, while the first players
will be available in June.  Next-generation formats are able to
store much more high-quality data, especially important for
high-definition video.  Both technologies use a blue laser to
write information. It has a shorter wavelength so more data can
be stored.  A Blu-ray disc will eventually be able to store 50GB
of high-quality data, while Toshiba's HD DVD will hold 30GB. A
standard single-layer DVD holds just under 5GB.  The disc
formats offer much better quality audio and video, while next-
generation console ga