How do I keep the sound and action together during conversion?

When you try to convert a video so that you can place it on DVD,but facing the problem of the sound and th action splits,saying as the movie go the person talking but the words aren't said for another 2 to 3 second.I think you are puzzled.
What program did you use? do you have a mac?I always use DVD Creator for Mac to convert and burn video to DVD, this DVD Burner software works pretty well for me, never had the problem like you said.
As far as I know,DVD Creator for Mac is a powerful Mac DVD burner designed for Mac OS users to edit and burn their videos files to DVDs. This Mac DVD creator can burn HD Video ( Burn MKV to DVD for Mac ). It supports almost all popular video formats including AVI, MOV, FLV, MPG, MP4, M4V, MPEG, DAT, VOB, 3GP, 3G2 and even HD videos such as TS, TP and TRP.

This Mac DVD Burner is complete with highly customizable DVD menus. It also provides you with flexible functions to edit your videos such as cropping video, trimming video length, and setting video effects etc.