zanetti
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heres something mind-boggling.
the other day i downloaded a movie from prime, cliffhanger. 1080p, file downloaded was 6gb with bitrate of 6777kbps. today i found out that prime also offers cliffhanger in 4k UHD. i downloaded that one also in 1080p (since AS doesnt do 4k) and... heres the kicker: that file was 9.81gb with bitrate of 11800kbps.
how did i get that idea? well, last week i was browsing my prime library and downloaded one of the purchased UHD titles and have noticed that a 1080p download of a UHD movie yields a far better quality file, usually above 10000kbps (up to 13100kbps), while other non-UHD 1080p titles' downloads vary from super small 3gb and bitrate of 2600kbps (glass, 2019 - this one looks noice even if the bitrate is small, which probably means providers are finding ways to cut down file sizes but maintain excellent quality) up to about 6-7-8gb and bitrates from 5-6000kbps. so, i decided to find the same movie, offered via prime directly (not prime channels) and i stumbled upon cliffhanger.
so, what gives? how is this possible? both movies have the exact same runtime, same exact profiles (high@l4, cabac/4 ref frames), same audio bitrate, same resolution and the only difference is that one has and the other doesnt have 4k UHD next to its title on prime and thus in AS.
btw, i dont have log file for non UHD cliffhanger, but can download again if need be and can provide log for UHD one if devs want them. im really curious to hear what devs have to say. also, if someone is willing to test this on their end, that would be more than welcome. oh, fyi. im using unlimited dl speed, and ive also noticed that these 1080p downloads of UHD titles take 2-3x longer to both download and postprocess as well, compared to the downloads of regular 1080p titles.
thanks!
the other day i downloaded a movie from prime, cliffhanger. 1080p, file downloaded was 6gb with bitrate of 6777kbps. today i found out that prime also offers cliffhanger in 4k UHD. i downloaded that one also in 1080p (since AS doesnt do 4k) and... heres the kicker: that file was 9.81gb with bitrate of 11800kbps.
how did i get that idea? well, last week i was browsing my prime library and downloaded one of the purchased UHD titles and have noticed that a 1080p download of a UHD movie yields a far better quality file, usually above 10000kbps (up to 13100kbps), while other non-UHD 1080p titles' downloads vary from super small 3gb and bitrate of 2600kbps (glass, 2019 - this one looks noice even if the bitrate is small, which probably means providers are finding ways to cut down file sizes but maintain excellent quality) up to about 6-7-8gb and bitrates from 5-6000kbps. so, i decided to find the same movie, offered via prime directly (not prime channels) and i stumbled upon cliffhanger.
so, what gives? how is this possible? both movies have the exact same runtime, same exact profiles (high@l4, cabac/4 ref frames), same audio bitrate, same resolution and the only difference is that one has and the other doesnt have 4k UHD next to its title on prime and thus in AS.
btw, i dont have log file for non UHD cliffhanger, but can download again if need be and can provide log for UHD one if devs want them. im really curious to hear what devs have to say. also, if someone is willing to test this on their end, that would be more than welcome. oh, fyi. im using unlimited dl speed, and ive also noticed that these 1080p downloads of UHD titles take 2-3x longer to both download and postprocess as well, compared to the downloads of regular 1080p titles.
thanks!
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