When will DVD's be improved upon?

CaTaClYsM · Post by **CaTaClYsM** » Fri Jan 17, 2003 8:29 pm

if you take a video and blow it up but keep the bitrate low then wont block noise get worste because you are keeping the bitrate the same but stretching it across a higher resolution?

klinky · Post by **klinky** » Fri Jan 17, 2003 8:42 pm

Yes you would get more compression artifacts, but as has been stated they would up the bitrate from 9mbps to atleast 18mbps, up to 30mbps.

:\

~klinky

CaTaClYsM · Post by **CaTaClYsM** » Fri Jan 17, 2003 10:04 pm

I know I was just talking about in general what the effects would be.

RadicalEd0 · Post by **RadicalEd0** » Sat Jan 18, 2003 9:22 am

Well going from 720x480 to 1920x1080 is exactly a 1:6 difference of pixels, so to get the same bpp the bitrate would need to be 30mbps. 1280x720 it would only need to be about 13mbps. Thats not taking into consideration the fact that spatial compression will vary anyway and a higher resolution image is more likely to contain more areas of the same color, making it more compressible.

madmallard · Post by **madmallard** » Sat Jan 18, 2003 12:50 pm

and dvd is a delivery medium, not a spec format.

dvd type discs are currently used for dvd-video mpeg2; dvd audio as pcm, mpeg, or dts; and SACDs.

lets not forget + and - ram, r, rw, rom etc.

Knowname · Post by **Knowname** » Sat Jan 18, 2003 4:31 pm

yesterday ;-p there have been countless technologys that CAN replace dvds but right now consumers (and therefor execs) just aren't ready for another change.

The big one that I can think of are discs (again) that hold up to 100gbs via this blue coating or sumthin... anyway

you'll probly see it in consoles that don't need backwards compatability (PS4, Xbox3 whatever...) first than in the movies.