Which is correct resizing 512x384 or 512x368?

[medp7060]

Which is correct resizing 512x384 or 512x368?

I am seeking help to decide which resolusion is correct. I have a PAL MPEG-2 caputure clip (4:3) at 720x576. I want to convert it into Xvid/Divx. Wheh I using GK I got two different resizing resolutions:

1) 512x368

when I choose PAL (or 720x576) as input resolution, 4:3 as Input Pixel Aspect Ratio and disable Cropping

2) 512x384
The same as above except that I put 1.3333 (4/3) as the Aspect ration for the Cropping. Since it is a 4:3 source.

...
Mpeg2Source("Clip.d2v") #@720x576 (4:3)
crop(0,0,718,572).BicubicResize(512,384)
#crop(10,0,700,576).BicubicResize(512,368), the confused part
...

Any help is much appreciated.

[gizmo27]

I don't know if I understand you problem but cropping is better because it allows you to win some video quality (not a lot but a few)

[medp7060]

I edited my question to make it clear.