I know it's different codecs, but I have 16gb UHD files of almost 3 hour movies that look great, 1080p could fit on a couple DVD9's, definitely on one BD25, so BD50 is plenty. If they use AVC/h.264, and not Mpeg-2, it'll be fine!
If it were not for corporate conspiracies, we'd get actual HD on DVDs around 2003 with just a firmware update. No need for new disc format or new expensive hardware.
Then BD would be in UHD right away, so less consumer resistence to switch 3-4 times in a lifetime, better sales, etc. Greed and stupidity destroyed the market. [/ end of conspiracy rant]
Your bitrate will be terrible. You will have blocking, banding and artifacts.
sure, it might look ok on small TV- But will look like a trainwreck on large TV.
There are very strict tolerances in encoding.
all discs are simply storage mediums. As you increase resolution and sound channels you need a larger storage space.
Codecs are helpful to compress the material (within tolerances) to accommodate available space.
But compression is not magic. You cannot compress a 100GB 4K file to 25GB or 3GB (looking at you, torrenters!) and expect the same image. It is no longer 4K. It is 4k in name only. (I can encode a 250mb file shot on potato into a 4k file- it doesn't make it 4k).
If corporate entities could have gotten away with it- they WOULD have pressed subpar HD discs on DVD9. It would have cost them pennies to do so.
(Mill Creek tried - and their name is mud for making discs that look like garbage).
The bitrate IS the quality of the image. And that cannot be magically cut in half by compression and retain the same quality. (Especially considering the addition of HD sound like DTS surround and Dolby Atmos and 10 and 12 bit Wide Color Gamut with HDR and Dolby Vision)
Compression codecs have improved over the years (HEVC H.265 being the most recent and best)- But we still need at least 66GB-100GB to properly encode 4K UHD material. (With bitrates between 60-150Mbps).
there is is no malfeasance going on here. A 100GB UHD disc > 50GB BR disc > 25GB BR disc > DVD > Laserdisc > VHS
The difference in image quality is readily apparent.
*I appreciate that not everybody is a cinephile- so if someone is fine with the quality of DVD- god bless.