The downside is that it is REAL TIME!!!! No other way to do it faster, sorry.
You could get DVD recorder that has a firewire port(this is what Sony calls IEEE) and go directly to DVD, it will still be real time but when you done you will the finished DVD.
Vista in a memory HOG!!!!! You need at least 2gb for it to run at 90% of the speed that Windows XP will run at. John