Nero Video 12 Problem

Here’s what I’m doing.

Recording a show on a DVR. Burning it to a DVD to move it to the computer. Using Nero Video 12 to remove the commercials. When I do this the sound gets out of sync. Any ideas. Is there a simple how to instructions. I printed out the Nero Video manual. It’s very large and not very straight forward.

The latest version of Nero I have is Nero 7 so it’s possible commercial removal has improved by Nero 12.
I sure don’t like Nero 7 for doing that.
I don’t have this software but I think it has a free trial & I don’t know if the trial has full function. The software is VideoReDo & it is supposed to be one of the best available for removing commercials.

Anyone else on this issue.