here's the deal.....
i download a svcd movie,
it unrar's into 2 mpegs.
i follow galactica's instructions to convert to dvd....
convert audio to 224/448, demux, etc.
then burn all parts with sizzle.

the movie is 2 chapters.
as the movie plays, the audio starts to unsync with the video toward the end of chapter 1. when chapter starts the audio is fine.
why does this happen?