lechonlubber
WiiChat Member
Ridewithme38 said:Take a 480i image and show both fields simultaneously and you have 480p, or progressive. This is the native format encoded onto a DVD (Digital Versatile Disc). Both 480i and 480p are based upon the standard 525 line NTSC broadcast system."
Glad I could help you save money!
You are correct about 480i meaning interlaced and how it's taking 2 images and interlacing them together. This is why you don't see a lot of people wearing vertically striped clothing on TV, the effect of interlacing gives you that jagged edge effect on straight lines. It's also why when you take a picture of the screen with a camera you only get the top or bottom of the image. DVD is actually 480i natively, this is a big misunderstanding in the industry right now. It all has to do with the old 3:2 pulldown used to transfer film to TV. On the DVD data stream there are flags that tell the player where to interlace the images. A progressive scan DVD player just reads the flags differently and takes the two images and displays it as one solid image. It then repeats certain images to give you the proper frame rate.
I highly doubt the Wii will ever go over 480p, the hardware is just not powerful enough.