Question about bitrates and PQ

[mthopper]

Originally Posted by Slec

higher bitrates don't necessarily guarantee a high score.

That's what I already said.

Originally Posted by Slec

There are other factors such as digital noise, coloring, black levels, transition between film stocks (is it noticeable when it occurs) and the dreaded DNR and EE. Knowledge of the elements used to create a movie aid in these types of opinions.

Of course these are all factors in the PQ. That goes without saying.

Originally Posted by Slec

As for the bitrate itself, I'll leave that to the more knowledgeable, but I believe the bitrate also has to do with the amount of work the encoder is doing.

Sigh...

Originally Posted by MOONPHASE

this is a quote from the review on Batman Begins on why it doesnt deserve a 5 star for PQ.

Uh huh. Here's the rest of the quote:

One of the flagship Warner releases on HD DVD, Batman Begins was delayed on BD to better capitalize on interactive features. Unfortunately, Warner appeared to make no effort to capitalize on Blu-ray's overarching feature: superior capacity. The bitrates of the BD are no better than that of the HD DVD. That means the picture and sound are also held back by the HD DVD, and appear to have been sourced from the same transfer. The video and audio are not bad at all, but Batman Begins is not up to reference quality by any accurate assessment. The most frustrating part of this observation is not just waiting more than a year for no significant bitrate improvement over the HD DVD, but in comparing Batman Begins to a six-minute prologue of The Dark Knight, which is included on the BD. Every frame of the prologue is truly reference quality, generating a stark contrast to the comparably veiled and constricted dynamics of the main feature.

The point is that the poor bitrate is clearly being cited as a detriment to the PQ of Batman Begins. But why? My original question remains: What exactly is the relationship between video bitrate and PQ?