I have some vcds that I wanted to put on dvd. They work great on the computer as vcds but when I use TMPEGen dvd authoriing program so they can be put on a dvd the audio gets out of synch. What causes this and is there a way for this not to happen. I just wasted my first two dvds. I did check the box to reincode them in the TMPEGen dvd authoring program. Thanks for your help.