From awhile back, but still relevant:
======================
About to put even more pressure on physical disc formats, Gray said, is the High Efficiency Video Coding (HEVC) video compression standard, which doubles the amount of data that can currently be streamed while keeping the "high-definition" format. HEVC can support 8K Ultra-High Definition content with resolutions up to 8192x4320.
The Blu-ray Disc format simply never hit the market levels of the DVD format, which dominated the home entertainment landscape in 2004 with $21.9 billion in sales representing a whopping 96% of home entertainment spending.
Since that peak, optical disc sales have plummeted by about 30%, according to the Digital Entertainment Group. Surprisingly, DVDs still have respectable sales figures, driven mainly by kiosk-style rental machines such as Redbox.
"Many consumers see DVD as good enough," Gray said. "It is rather like a less extreme version of the CD story, where the format was so good that there was little room for improvement (at least in terms of an economically viable category)."
Team Negative1