Try defab -> files -> FixVTS -> Shrink -> burn/w imgburn at less than 4x on Verberum disks. That is what I do EVERY time I might burn a coaster every 300 disks.
I think your original file is corrupted. (If you can watch the video file on the PC you first rip it with, but no any where else). Tray to re-rip it with DVD-Fab once again on the last PC you use. Hope this help.
