Okay, i have an xvid video which i want to covnert to dvd. it 23.97 fps. I also want to add subtitles to it, so i followed the easy tutorial using avisyth and vobsub. This worked, but when the file is loaded in nero showtime it becomes slightly jerky. Also, when i load the file into tmpgenc and try to convert it to ntsc dvd interlaced with no 3:2 pulldown it becomes jerky as well. Is there soemthing about the xvid format that could cause that?