Alternative HD disc formats

HD-DVD and Blu-ray aren't the only HD disc formats out there; there's a handful of alternative formats (mostly based on red lasers) that have tried, or are still trying to get a space on that home entertainment shelf.

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Enhanced Versatile Disc (EVD)
This format was born in China as a way to play HD-quality content, essentially, from a DVD disc. But, supposedly, EVD players were also to be a way of bypassing licensing fees for DVD players at the time and reducing China's reliance on foreign technology. To pack HD data onto it, it was to use codecs from On2 and Coding Technologies, but later reports suggest that MPEG-4 was also considered. It was said that China wanted to switch from DVD to EVD by 2008, but that hasn't happened yet.

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Alternative HD disc formats

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