Nikosony ,
i did exactly exactly as you told me.i renamed the file from .vob to .mpg format but from what i noticed it did not change the format at all but only the name! so next i downloaded the software and then i went to open and selected one of the .vob files..so it had asked whether i should index them? i gave yes.next i inputed the settings u gave.i tried to save the movie and i got an error about video filters. so again i went back and removed the .mpg extension and tried again.i got a different error this time:

http://farm4.static.flickr.com/3258/...edbc8f9d_o.jpg

something to do with pixels and frame rate i think! what is the best thing i can do now?.. any format is ok with me because at the end of the day its all about editing the video file in sonyvegas and making the movie in such a way that there is video lag.
just one more thing.these are a bunch of files i actually copied from a dvd. they are .BUP, .IFO and .VOB files

thanks for guiding me.
peace.