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Comparison of high-definition optical disc formats - Wikipedia
With hi-def war, it's 1975 all over again
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Godzilla vs. Kong'; Own It On Digital May 21 & On 4K Ultra HD, Blu-ray & DVD June 15, 2021 From Warner Bros | Screen-Connections
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Blu-ray Vs. HD DVD: Is Sony Now Losing The DVD War?
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