With 4K TVs and content slowly creeping into relevancy, the Blu-ray platform appears to be headed in the other direction. If Sony's President and Chief Operating Officer Phil Molyneux statement holds merit, then users who require 4K content in the future may be forced to download, rather than purchase the content on physical media.

No one expected 4K content to be small; the resolution is four times that of 1080p HD, so no doubt, a two-hour 4K movie would be massive. The thing is, though no one expected 4K content to be small, no one even thought for a second it would be 120GB for just a two-hour movie. With that kind of size, even a Blu-ray disc does not have the capacity to hold the content.

"If you look at the Bluray format and the density of a 4K native content movie, you can't fit it on a bluray disc. it's a 120gigs depending on the length of movie ...We've got to find the other way, which is downloading, " said Molyneux in an interview at CES 2013.

We all love to download things from the Internet, but it is not possible for many Internet users today to download a 120GB file in a short amount of time. 

The companies behind 4K content may need to compress these files or make available Blu-ray discs with larger-than-life space because digital downloads only will not cut it.