need an easy way to adust brightness\contrast with vob files

[frogman54]

is there a simple way to do this and not have to convert the VOB file to anything else?

[guns1inger]

no

aside from the controls on your TV or player, there is nothing you can do without extracting the video, changing it, re-encoding, and either dropping it back into the original structure with IFOEdit (or similar), or re-authoring.