A patent application has been filed for a disc that would play two competing high-definition DVD formats. If successful, the disc could help resolve a battle that has divided Hollywood and confounded consumers.
The patent application was filed by three Warner Bros. employees, two of whom are engineers for the company.
The “multilayer dual optical disk” would have one layer of data in the standard CD or DVD format, a second layer able to play one high-capacity format and a third layer for the competing high-capacity format.
Rival formats Blu-ray, which is backed by Sony Corp., and HD-DVD, supported by Toshiba Corp., both work using a blue-indigo laser beam but are not compatible with each other.
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