They’re talking about 4K Ultra HD Blu-ray, which was introduced in 2016. The video is still compressed, but it’s still much higher quality than DVD and Blu-ray, and can hold 60-100 GB of data.
Comment on DVDs are dying right as streaming has made them appealing again
victorz@lemmy.world 2 months ago
When someone buys or rents a DVD, they […] can also watch the content if the Internet goes out and be certain that they’re getting uncompressed 4K resolution.
I’m sorry, is this a special version of DVD that can store 4K video? Uncompressed?
TheImpressiveX@lemmy.ml 2 months ago
victorz@lemmy.world 2 months ago
But they wrote “DVD”. I’m just nitpicking.
TheImpressiveX@lemmy.ml 2 months ago
Ah, gotcha. It’s annoying when people use “DVD” as a catch-all term for all optical media.
dual_sport_dork@lemmy.world 2 months ago
It’s easy as long as you’re okay with only being able to fit probably 1-2 minutes of video, the resulting disk not playing in any consumer player ever, and probably not even being capable of real time playback on a powerful PC with a fast drive.
victorz@lemmy.world 2 months ago
😅 I’m not sure if I am, to be honest.
Gestrid@lemmy.ca 2 months ago
At the very least, it’s still (generally speaking) higher quality video than streaming. It’s not uncompressed, though.
victorz@lemmy.world 2 months ago
Surely not? DVD is 576p/i (PAL) and 480p/i 💀. Not even 720p. 720p looks like garbage on a 4K display IMO. I really hope you are getting higher resolution from your streaming services than that, otherwise I think you’re getting ripped off. (Streaming services are a ripoff to me regardless, but that’s another point.)
Gestrid@lemmy.ca 2 months ago
Others replying to the comment included Blu-ray, so I did, too. I assumed it was a given to include that since others had already brought it up.
victorz@lemmy.world 2 months ago
No harm done. I’m mostly just being facetious. 😅❤️
todd_bonzalez@lemm.ee 2 months ago
4K BluRay discs are compressed with HEVC. There’s no way to get consumer 4K video uncompressed.
Uncompressed 4K@30fps requires A 6000mbps data rate. BluRay caps out at 144mbps.
A 90 minute movie would be 4TB. BluRay caps out at 128GB.
victorz@lemmy.world 2 months ago
Exactly. And a regular DVD caps at 4.7 GB if I’m not mistaken. Not even close.
Malfeasant@lemmy.world 2 months ago
That’s just single layer - dual layer is something like 8.4 if memory serves (which it often doesn’t…)
victorz@lemmy.world 2 months ago
Yep, single-layer.