Hi, Been producing a dvd for some friends of their wedding using my Panasonic video camera. Halfway through the day my camera broke so I borrowed someones Sony HD camera. The person I borrowed the HD camera from then burned the footage as a DVD (they use a pc) and I extracted the footage out of the DVD as a DV file using Toast 8 (making sure the frame rate was the same as my project - 25fps). I have edited all the footage in iMovie then created the iDVD project - everything looks fine in the preview. After the DVD is burned and I test it on my DVD player & TV all the footage from the HD camera is very jerky, particularly when there is movement on the screen (walking etc). All the footage from my camera plays perfectly. The burnt disc plays fine on my Mac through DVD Player though. Can anyone shed any light? Do I need to convert the HD footage to SD before importing it into iMovie? I am using iMovie HD (6) and iDVD 7.0.1 Thanks in advance.