I just bought BF:Vietnam today and made a successful back up using A-Ray Scanner + Alcohol 120%
I ran it thru A-Ray and its sd 2.9 so i used the sd 2.9 - 3.2 profiller.
i ripped it using my ASUS DVD E616 at Maximum speed with the profiler saying "A-Ray"
i burnt it using the A-Ray profile at 4x speed with my Pioneer DVD DVR-106E using the latest firmware (1.08)
i hope that helps ya out a bit