There is an extremely nice "Digital show and tell" video by Monty at https://xiph.org/video/vid2.shtml https://xiph.org/video/vid2.shtml (part 1 at https://xi

There is an extremely nice "Digital show and tell" video by Monty at https://xiph.org/video/vid2.shtml https://xiph.org/video/vid2.shtml (part 1 at https://xiph.org/video/vid1.shtml https://xiph.org/video/vid1.shtml is also very well worth watching.)