Rather than using Java, HD DVD (the defunct high definition successor to DVD) used a technology jointly developed by Microsoft and Disney called HDi that was based on XML, CSS, JavaScript, and other technologies that are comparable to those used by standard Web browsers.
The HD DVD standard was one place where the ECMAScript Compact Profile was used in favour of full ECMAScript to reduce processing and memory needs on devices.
A rip of Blu-ray or HD DVD disk to another container format or just stripping the disc of menus and bonus material while keeping the contents of its audio and video streams intact, guaranteeing the exact 1:1 movie quality as on original disk.
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The Blu-ray Disc and the HD DVD home video formats provide up to eight channels of lossless DTS-HD Master Audio, Dolby TrueHD or uncompressed LPCM audio at 96 or 48 kHz/24 or 16-bit.
Since the DVD Forum and the Blu-ray Disc Association failed to agree on standards for high-definition 12-cm discs, a format war was under way between the DVD Forum's HD DVD (formerly "Advanced Optical Disc") standard and the Blu-ray Disc Association's Blu-ray Disc standard.
In 2001, he claimed to have broken the HDCP system that is incorporated into HD DVD and Blu-ray Discs players, similar to the DVDs Content Scramble System, but has not published his research, citing the Digital Millennium Copyright Act of 1998, which would make such publication illegal.
The technology was considered a stepping stone to true high definition optical disc formats (HD DVD and Blu-ray Disc) and Microsoft never intended the discs to be played on anything but personal computers.