Higher Res. better quality???

[yysie]

I have made a Xvcd at VBR 2600 kb/s, 25 fps, and Res. 720 x 576 (Pal) Why is the quality now almost the same as SVCD???
I have made the same with a lower Res. the quality of the first is better??? Why???

[vhelp]

yysie,

In short, you can't expect to see
"better" quality, by reasing the
res. higher! Doesn't work that
way. I'm assuming you started out
with a 352x240 or lower, res. and
decided to push it up higher to
get (assuming) better quality.

The only when you get "better"
from moving to different res. is
NEVER!!
What you will get is this:
* if you're moving, say from a
480x480 (svcd) downto say, 352x240
(vcd) then quality will NOT improve
but rather will not get too out
of hand or distorted. If you try
and go from a 352x240 to a 480x480
then the chances are, you're gonna
get some distortion or not-so-good
as quality you would expect, though
not too bad either IF its from a
DVD source.

Just remember, NOTHING EVER gets
"improved" when you move (up/down)
it only stays the same (illusionly)
or it get distorted to some degree
but acceptable to the eye ability
to differentiate the quality move
from res. up/down.

Above is based on DVD source.

Ok, now, when you "capture" it's
assumed that it's always better
to cap at the highest res. you can
do w/ your CPU. To some degree,
this is true. In my experience,
i cap at 352x480 and encode to
352x480 xSVCD and I get pretty
good results with this. Capturing
at higher ie, 704x480 will only
allow you ta have alternate res.
encode, ie, 480x480 (svcd) or the
352x480 (vcd) So, that's a good
reason to cap at high res. 704xxx
You have to make the decision as
to what res. you want to cap at
and stay with it. be it 352 or
704 or 720. In my case, I choose
to stay with 352x480.

Oh,and also, don't always exptect
that if you really raise the bitrate that you will get better
quality, caues as you will note,
and prob already have, it don't al
ways work out that way. Save you
self the grief by not using so
much bitrate (pending on your encod
e, svcd or vcd limits)
But, if you gonna go the 2600 bits
high, then you may as well go w/
svcd (unless you dvd player does
not support svcd)

-vhelp