VSO is the default burning engine that installs with DVDFab. If you have problems with the disc writing part of the copy process (usually "Task 2 of 2" in DVD to DVD) or DVDFab reports errors there, VSO has its own excellent support site, which you can reach here. [COLOR=black]On the page that opens, c[/COLOR]lick on the link that says "Send Message"; a download box will open to run a small executable file (vsorep.exe) which will automatically gather system information and logs for submission to VSO Tech Support. For some problems, you may get a quicker and more targeted response from VSO direct than from posting in the DVDFab forums, but VSO related topics can be posted in this sub-forum or in the or forums.