I have several svcd's with all the same specs

Video 1550 kbps,25.0 fps,480*576,mpeg2
Audio 224 44100 2channel

all are good quality and Im trying to use dvd-lab to place them on dvdr's without re-encoding them but when I start to demux them using dvd-lab I get the error

The vob file has an encrypted video stream .This file cant be remuxed
I have tried using tmpgenc to demux them as well but when its finished part of the file is missing.Is there aany help out there for this ?TIA