I had the same problem a while back.
There were some reports over at
www.vcdhelp.com that a firmware update solved the problem, however this doesn't work.
There are a couple of things you can do. The first is to introduce a time delay into the audio to sync to two up.
The second is my own solution and it works for me. That's to remove any menu's or titles/logo's from the beginning of the SVCD.
This is easy if your generating your own SVCD's like me as you just change the production method. If your buying SVCD's all you could do is edit them and output back to a new cd. Of course your gonna need a suitable PC and software to do it.
All my home made SVCD's now work perfectly.
Cheers
Laurel