red5-626 said:

OK! There is a lot I do not Know.

For one I thought that THX optimizer was specific to the movie it was on. When I would watch the GOUT I would use the GOUT THX optimizer if I watch the 2004 DVD I would use the 2004 DVD THX optimizer. Are all the optimizer’s the same?

No, your first statement is correct. All the optimizers should be different to some degree.

The mind set behind THX is that the optimizer is passed through the same transfer process to the disc as the movie is. As a result any variation that occurs in the film will similarly happen to the Optimode allowing you to compensate.

Whether this is still true or not is anyone's guess, but it was at its inception.

And I don't know anyone crazy enough to recalibrate their TV every time they put a different movie on.