I just purchased 'COCO' from iTunes Store and on store page it said the file size of 1080P is 4.12GB
But, When i download it to my computer the file size different from store page it's only 3.83GB ?
another Question, It is true that streaming playback give a higher bitrate than download?
I think that the store uses decimal, whereas what's downloaded is in binary e.g. 4.12 means 4,120,000,000 bytes, which is 3.83 gig in binary
It is true that streaming playback give a higher bitrate than download?
Not that I'm aware of.
Regarding your supplemental question see Find and watch movies with 4K, HDR, or Dolby Vision - Apple Support. In particular the section Check your Internet connection which ends with:
You can download a local copy of an HD movie to your iPhone, iPad, iPod touch, Mac, or PC, and you might be able to download HDR and Dolby Vision versions to your iOS devices, but you can't download a 4K version.
I.e. the downloaded versions of 4K purchases are likely in HD not 4K. I doubt the store lists the sizes of the 4K streams.
tt2
Why movies size on store different from download?
