[fennecfoxy]

And also quality.

I wouldn't think that the copy of some movie Netflix is streaming to me will be 60-100GB over the duration of the movie. Not to mention when their services have issues and you're watching 5-10 minutes of low quality content until it settles and snaps up to full (streaming) quality.

[mghackerlady]

Most people really don't care, which is a shame. The sheer quality difference between a 4k digital movie and a 4k bluray is astounding. Hell, oftentimes a standard bluray looks better despite the lower resolution since it isn't being compressed

[rhinoceraptor]

A 4K movie uncompressed would be something like two or three terabytes depending on the format. I think Arri are the only cinema cameras that can even shoot uncompressed or losslessly compressed, the rest shoot lossy compressed video in their native raw formats.

[Gigachad]

I highly suspect they mean not compressed beyond bluray quality rather than literal uncompressed video which obviously is impossible to stream.

[fishgoesblub]

> since it isn't being compressed

Isn't being compressed as much. All Blurays are compressed either with MPEG2, VC1, H.264, or H.265 if it's an UHD Bluray.

[mghackerlady]

Huh, I always thought they were uncompressed. That's why people preferred it over hd-dvd

[Telaneo]

Uncompressed 24-bit 1080p running at 24 FPS requires 1.192 Gbit/s, or 0.149 GByte/s. So a 25 GB (single-layer) blu-ray has enough space for a whopping 167.8 seconds of uncompressed 1080p video running at 24 FPS. You can double that with a dual-layer blu-ray, and there are more corners you can cut, but I don't think you'll fit your movie in there.

Video is really big. Compression was needed to make it even vaguely possible unless your quality was in the toilet.

HD-DVDs were smaller, so they were more compressed.

[eska]

I don’t think that you guys should be debating compressed vs uncompressed, but lossy compression vs lossless compression. Your math seems to derive from a naive storage format.

[Telaneo]

Blu-ray is lossy too. All video codecs of note that aren't for professionals are lossy, so the point mostly still stands. Lossless compression doesn't go very far when it comes to video.

An uncompressed 24 bit 1080p image is just under 6 MB. If you save it as a compressed PNG, you cut that down to roughly 2.5 MB. Now, PNG compression isn't very efficient, and you can probably do some interframe magic if you really wanted to (cf lossless h264), but the whole exercise is mostly futile, since even if you cut your bitrate down to an eighth, you're still looking at, like, 20-ish minutes of runtime with 25 gigabytes.

Meanwhile, blu-ray looks as good as it does at an average of 25-30 mbit/s (0.03 gbit/s) (while UHD blu-ray even more so, with a better codec, so even more detail is preserved). The compression used saves so much space the trade-off is obviously worth it unless you're a production company making an actual movie, where every detail counts.

[mghackerlady]

Ah, that's what it was. I'm still half asleep, I didn't drink enough caffeine this morning haha

[nly]

Theres no technical reason one should look better than the other.

Both should use multipass ahead of time compression with a rate control algorithm, and both should have enough slack streaming bandwidth to handle complex scenes with buffering

[jeffbee]

Even a well-mastered DVD can look better than online streaming.

[antisthenes]

What's kind of an annoying side effect of this is that you have all this fancy new display tech, like quantum dot LED (marketing term, but w/e), or OLED, but it's all pointless because you're just watching it with crappy compression, negating the quality gains.

[artisinal]

The football World Cup 2026 is being broadcast in 1080p with washed out colors. Yet every shop was advertising 4K OLED for the best experience of watching the matches.

[vel0city]

Supposedly the master stream from FIFA is in HDR, so if the colors are washed out its probably a bad conversion with your TV provider or TV.

I do agree its insane to me we're still not at 4K coverage for world major level sporting events.

[artisinal]

The TV channel broadcast was 50Hz, 1080p and used image compression. They did not broadcast the master stream directly. That would have cost too much money.

It feels misleading to advertise a 4K OLED as the best viewing experience with such a poor source signal.

[vel0city]

So your local TV provider's limitations should limit the advertising for all TVs sold?

This actually made me look up some of the specs related to the feeds. Quite an interesting read. They apparently are delivering the main feeds in 2160p.

https://www.iseurope.org/news/fifa-world-cup-2026-broadcast-...

https://www.1001tvs.com/2026-fifa-world-cup-4k-hdr-broadcast...

[artisinal]

It’s the national government channel broadcasting the matches in that quality, the local TV providers are just passing it on. Everyone in the country is watching at a low quality feed.

[amlib]

It looks great on youtube at 4k, at least if you are somewhere where they are transmitting it through youtube.

[someonebaggy]

Video looks better on streaming platforms at higher resolutions, even when the pixels are just interpolated, because it increases the compressed bitrate.

[moniosi]

i'm proud my country (italy) pionereed dct-based digital transmission during the 1990 world cup, i wish we lived in a present were europe was still ahead (or at least on par with) the rest of the world