I filmed using photo booth and imported files into iMovie. I created the movie and then shared it to file, this gives me an mp4 file. I have taken this file into Toast 18 pro and burnt a DVD-video on to a Verbatim DVD-R disc. This disc plays fine on my MAC but when i put it into the DVD player it plays but the picture and sound are slightly our of sync and it has a slight hiccup every so often. How can I solve this? (I have tried the disc in two different DVD players and its still the same.) I also have tried burning the disc in the two different formats and it makes no difference. It should be PAL that works as I am in the UK.