Which Quantization (Quantizer) Restrictions Number better? use 1 or 2

[afcoff]

I am very confusing using this option in Xvid Quantization Option. I recently Searched about this Topic and I found that in Some forum says using 1 is good but it is used more space and 2 is better. Apart from changing all Min quantizer settings to 2 (using 1 will not improve picture quality, and will only increase file size). is this is true. using 1 is not better only 2 is good. and Trellis Quantization option Enabled or Disabled. why use this Trellis Quantization option

[manono]

The only reason the quant 1 was made available was to stop the whining by incompetent encoders when their encodes turned out undersized. Set the minimum for 2. And I set my max to 6, although few would go along with that.

Better, if final size isn't important to you, is to make 1-pass CQ encodes for a specific quant.

is this is true

Yes, it's true.

Trellis Quantization option Enabled or Disabled.

Enabled.

[jagabo]

Trellis Quantization: http://en.wikipedia.org/wiki/Trellis_quantization