last week, took look @ compression being employed apple new 1080p content on itunes store, feature has allowed apple increase file sizes 15-25% compared 720p number of pixels have more doubled. number of commenters interested in seeing how 1080p itunes content compares blu-ray, , ars technica has returned new analysis looking @ relative quality of 2 sources.
the report offers number of blown-up comparison shots, finding itunes store content compares blu-ray content, although struggle bit more bright highlights, scenes high detail , noise levels, , dark gradients.
comparison of color , detail in itunes 1080p (left) , blu-ray (right) formatsapple's move 1080p video content in itunes store part of significant shift higher-resolution offerings, pairing new new content movie support itunes in cloud , new 1080p hardware in new ipad , apple tv set debut on friday.
comparison of dark gradient handling in itunes 1080p (top) , blu-ray (bottom)
(brightness enhanced clearer demonstration)
article link: itunes 1080p content comes close blu-ray quality, can't quite match
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