What is normal DVD resolution?

Discussion in 'General Hardware' started by Maverick2002, Jun 6, 2010.

  1. Maverick2002

    Maverick2002 Diamond Member

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    I don't get it. What is the standard DVD resolution (like movies you would rent today)? Is it 720x480? If so, what happens with movies that are widescreen (which is most movies) in 16:9 aspect ratio? Is the movie actually an even lower resolution (720x405 which is 16:9) but with the extra pixels on the top and bottom just as black bands? I can't believe I can't find a clear answer to this ...
     
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  3. SKORPI0

    SKORPI0 Lifer

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  4. Maverick2002

    Maverick2002 Diamond Member

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    So it's 720x480 like I thought, thanks.
     
  5. mmntech

    mmntech Lifer

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    DVD video is NTSC 16:9 720x480 at 29.97fps.
     
  6. mfenn

    mfenn Elite Member <br> Currently on <BR> Moderator Sabb
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    On most movies, the letterboxes aren't part of the actual data. A technique called anamorphic compression (wiki) is used so that there are always 480 vertical pixels and 720 horizontal pixels of actual image data. The resulting movie is then converted to the proper aspect by the DVD player. BTW, this is why upscaling DVD players work so well. There is actually 480 vertical pixels worth of data, but a standard TV just can display them. Increase the vertical resolution of the set, and suddenly you can display all of those extra pixels!
     
  7. 0roo0roo

    0roo0roo No Lifer

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    you still lose some, films are generally not 16:9 but something higher.
     
  8. Maverick2002

    Maverick2002 Diamond Member

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    Right, movies in theaters are 2.39:1
     
  9. Spicedaddy

    Spicedaddy Platinum Member

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    Depends on the movie... Theater screens are 2.35/2.40:1 with curtains on the sides. If the movie is 1.85:1, they close the curtains slightly so you don't lose contrast.
     
  10. mfenn

    mfenn Elite Member <br> Currently on <BR> Moderator Sabb
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    Was this directed at me? Anamorphic compression works with any source AR.