Is a DVD with 4000kbps...

I'm just wondering...
Does a DVD with 4000kbps has better quality than a SVCD with 2520 kbps.
Will there be more macroblocks on a DVD with 4000kpbs than on a SVCD with 2520kbps? Or will it be quite the same, but sharper?

/matte

[Conquest10]

the dvd will be better.

[SaSi]

As a rule of thumb, that is don't shoot me - it's a rule of thumb 8) - if you increase resolution on the frame, you must increase bitrate by 3/4 of the resolution increase to have the same quality (using the same encoder and other settings).

So, for example, if you have a 480x480 SVCD, you have a frame size of 230.400 pixels. With a DVD, you have 720x480, giving 345.600 pixels. The frame increase ratio is 1.5. So to have the same quality, you need to increase bitrate from 2.520 kbps to 2.520 x 1.5 x 3/4 = 2.830 kbps. So, that is why Conquest10 is correct. Just felt compelled to explain why...

[Conquest10]

you can also have a dvd at 352x480.

Yea I know. But I don't like the unsharpness of a CVD.

Thanks for the help you two guys...

[SaSi]

And if you fiddle with the Quantization Matrix, you can improve quality even more.

CCE has alternative Q.Ms for lower bitrates. They produce better quality at any bitrate. Kwag made an adventure on that and modified these even further (working with Tmpgenc) and has produced several "recipees". I have modified the Mainconcept Quantization Matrix and increased the B frames in place of P frames and the same average bitrate (3.500kbps) for PAL DVD gives really excelent results.

[SatStorm]

DVD (720 X 576) @ 4000kb/s gonna look better SVCD (480 X 576) @2520kb/s.
The reason is simply: You double only the horizontal dimention, not the vertical. It is not like going from VCD to SVCD which you double the vertical resolution.
The point is that yes, some bitrate needed to support the longer horizontal framesize, but that doesn't mean that you need the twice bitrate for this!