the movies are too dark
 

I have every codec
but all my movies looks too dark and decreased there quality
what should I do

If the movies are mpeg 1 format you can encrease brightness only from your video card drivers. If they are avi then right-click on the movie window, choose properties and after that click on xvid decoder or xvid decoder (depending on codec tipe) It will pop up a configurantion window. For divx you have 3 labels: post processing...., quality......, help...
Choose quality settings and there you have a slider for brightness.
For xvid the slider is in the first window.

of course you will need at least 32-bit resolution to view the movies in best quality![/b]