For what it’s worth, Australia is PAL and the last time I duped a whole bunch of DVDs, the guys there told me Code 5 is the most stable and compatible of all the codes. You can set those in DVD studio pro. The last time I used DV footage and exported them as a DVCpro50 codec to be recompressed in DVD studio at a bitrate of between 7.7kbps and 8.0kbps to make the master copy and it worked beautifully. See if this helps!