I've used Studio DC10, 7, 8 & 9 and +.. and if all you want to do is copy a vhs to dvd, get a stand alone device..
The aforementioned post even states "Decent editing software, the best user interface in the biz, and easy menu creation & DVD burning if you don't get snagged by the software's many quirks and bugs. "
It doesn't matter if the software is free and runs beautifully, which it's not, it is a total waste of time and resources to use a computer to copy something if you aren't going to edit the footage.