Here's a rather exciting bit of home theater-related news: In an interview with The Verge, Sony Electronics President Phil Molyneux said the recently announced PlayStation 4 will support Sony's 4K movie-download service, which is expected to go online this summer. Molyneux indicated that typical movie titles would be over 100GB in size, so taking advantage of 4K content will require a decent broadband connection and a high data limit. With file sizes that large, the quality promises to exceed anything available on Blu-ray today, but for many users a download of that size could take hours. Molyneux was non-committal about the future of Blu-ray, mentioning that the whole world is moving toward downloads.
Molyneux was bullish about the future of online delivery for 4K — he said that he's personally heading up the download service project, and added that while he was "not discounting" physical 4K distribution on Blu-ray or other media, "the whole world is moving more and more to download." source: theverge.com