4k Blu-rays: excellent format, questionable lifespan
I have mixed feelings about 4K Blu-rays after plowing a lot of time and money into the technology. The format has significant hurdles for everyday TV watchers that make me question its longevity. Yet the upgrades have been substantial, at times incredible, even with a dated home theater setup.
That upgrade stems from Blu-ray’s unimpeachable picture and sound quality. In an era where most movies on streaming sites are compressed 1080p, where 4K streams may not even be an option unless you’re on a premium monthly plan, a 4K Blu-ray’s rock solid 4K HDR image looks sensational. The detail can be astonishing. In Blade Runner, as a character reads a newspaper, I can make out the text on individual articles. 4K Blu-rays also preserve the original film grain for movies shot on film stock, given the high quality scan. It’s a subtle effect that adds character, especially for older, classic films.
In fairness, you can purchase and rent many streaming movies in 4K. It’s also a commonplace resolution for streaming originals on services like Netflix and Apple TV Plus. However, because the data transfer rate on streaming is a third to a quarter of that on Blu-ray (streams top out at 40mbps, while Blu-ray maxes to 128mbps), the former relies on compression and other algorithmic tricks to deliver video.
Continue reading…