What is TAP resizing and why use it when it is slower than the normal resize options ?
A. TAP resizing is resizing in steps. That is it doesn’t resize to the final size in one go. Instead the frame is resized to a mid point and then that is resized to the final size. This gives a more accurate resize and provides better quality. Compare with things like subtitles or objects with diagonal lines in a film and you will see the difference, especially going from DVD to VCD size. The more steps the better the quality but it comes at the cost of speed. Only single TAP has been implimented in DVDx because it provides a noticable quality increase with the minimal increase in encoding time.