When i demux the video and audio of a DVD using DGIndex, the demuxed audio file usually says at the end 'DELAY 72ms' So then i deinterlace the video and apply some filters, render, then remux the video with the audio, though i do this using ffmpeg. Is using '-offset 0.072' correct? Now i just check to see if the audio is correct by importing the original VOB file, then dragging this rendered file into the timeline, so they both play at the same time, but there appears to be some slight reverb, indicating it's still ms out of sync?