How do I adjust brightness, contrast etc on existing DVD?

[blenky]

Hi

I have a DVD-R with quite poor quality picture (although the sound is AC-3). Although I knpw there is a limit to what I can do with the video quality I would like to adjust the brightness, contrast, sharpness, hue etc and then re-burn to another DVD-R.

Could someone tell me how I go about this?

Thanks

[ricky1756]

i would probably rip it back to my hd, use a program like dvd2avi, to turn it into an avi. Then i would use the filters in virtualdub.