Audio Doesn"t Match Video?

i join two video files and make one big file. I add it to DVD BUILDER from ROXIO and burn it. After when i watch the movie the guy in the movie is talking and the audio is like one sec off. After i join the files i check the big file and it doesn’t have that problem. Its only after i burn it. Can someone help me.
I burn it on a DVD.:bigsmile:

More than likely Roxio DVD builder is introducing the audio out of sync issue when it authors the DVD video .VOB files. Does the program save the files on your hard drive before it burns them? I wonder if other programs were running in the background while it was building the DVD? If the video was captured this could be an issue with the capture? I use TMPGENC to Author DVD video. I would check out for more info.

I hope this helps