End of side 1 is Owen leaving the house when he's searching for Luke. Begin side 2 is Luke and C3PO speeding through the dessert. I'm not at home so I can't check my avis for the other disc/side changes. I also tried replacing Moth3r's audio (I tried adding PCM audio to the PAL m2v) and in the first half of the movie it went well, but after that it gets worse. In the death star battle the audio seemed to be a bit behind then a bit ahead and so on. So in the end I gave up.