i have an mpeg 2 file which when converted to vobs using movie factory played out of sync after 10 mins, so i d/loaded the patch from ulead which may solve this problem and also compatibility patch for dvd burners.but now as a result the lowest burn speed available to my pioneer 105 is x4 speed which is no good using x1 speed disks,any idea what is the problem or anyone had the same problem?