4K compatible content distribution starts at iTunes Store, but downloading is not possible with streaming only

"Apple TV 4K" compatible with 4K & HDR video streamingAs the release date of 4T · HDR compatible content started to be delivered at iTune Store. However, unlike the SD / HD content so far, the 4K version is streaming only, it can not be downloaded.

Find and watch movies with 4K, HDR, or Dolby Vision - Apple support
https://support.apple.com/ja-jp/HT207949


4K movies from iTunes can be streamed but not downloaded locally
http://www.idownloadblog.com/2017/09/21/4k-movies-itunes-no-download/

iTune Store has provided video content such as movies with two resolutions of SD and HD, but in the future 4K will be added with higher pixel density and higher resolution than HD.

The icon displayed in the 4K version is


In addition, HDR format "HDR 10" version which is a technology to expand the luminance range and "Dolby VisionVersion also appears.

"HDR" icon is displayed for content with HDR 10 edition.


Dolby Vision version displays Dolby icon.


For example, in the case of Apple TV 4K, since resolution corresponds to "4 K" as the name also includes, and HDR format is compatible with both "HDR 10" and "Dolby Vision", enjoy the best video with 4 K + HDR content You will be able to do.

If you have already purchased the contents of SD version and HD version on the iTune Store, you do not need to purchase separately when 4K version, HDR 10 version, Dolby Vision version is added later. The price when purchasing a 4K version is the same as the HD version.

In the case of 4K streaming, the Internet connection speed is "at least 25 Mbps recommended". According to the information on Apple's support page, although the HDR · Dolby Vision version can be downloaded, the 4K version is "download not possible".

With iDownloadBlog, we speculate that there was an exchange condition that prohibits downloading 4K version instead of free upgrade from HD version to 4K version regarding this measure.