hi ive been using nero make a movie and added chapters and trimed and all that. was all fine on the demto check it but once transfered onto dvd the chapter were about 3 minutes out from where i originaly put them i tried another disc and burnt it at 2x and turned everything off running in the background etc to see if that would make a difference but the disc just froze up altogether im trying to just copy to hdd now and then add it to the disc from there instead, am i doing anything wrong is it a media problem a speed problem etc?