Mechanical Music Digest  Archives
You Are Not Logged In Login/Get New Account
Please Log In. Accounts are free!
Logged In users are granted additional features including a more current version of the Archives and a simplified process for submitting articles.
Home Archives Calendar Gallery Store Links Info
MMD > Archives > April 2012 > 2012.04.04 > 03Prev  Next

DVD "The Ampico Code"
By Bob Taylor

An MMDer pointed out the limits of DVDs -- they do not play at 1080p,
but rather they are 720 x 480 pixels.  I knew that, but just didn't
think about it.  I apologize for my error.

Bob Taylor

 [ The number listed in the common TV resolutions of 1080p, 720p, and
 [ 480i refer to the number of horizontal scan lines.  The number
 [ of vertical lines turns out to be a larger number at the ratio
 [ of 4:3 or 16:9 depending on the aspect ratio of the source material
 [ and/or display.  The suffix letter refers to whether the input to the
 [ display is interlaced or not.
 [ Standard DVDs can support resolutions up to 720x480 pixels at 29.79
 [ frames/second interlaced.   This corresponds to "480i" resolution.
 [ This preceptually much better than VHS tape and "upscales" to 720p
 [ displays so well that a lot of people won't notice or care that it
 [ isn't really 720p source material.          -- Jody

(Message sent Wed 4 Apr 2012, 20:52:25 GMT, from time zone GMT-0500.)

Key Words in Subject:  Ampico, Code, DVD

Home    Archives    Calendar    Gallery    Store    Links    Info   

Enter text below to search the MMD Website with Google

CONTACT FORM: Click HERE to write to the editor, or to post a message about Mechanical Musical Instruments to the MMD

Unless otherwise noted, all opinions are those of the individual authors and may not represent those of the editors. Compilation copyright 1995-2024 by Jody Kravitz.

Please read our Republication Policy before copying information from or creating links to this web site.

Click HERE to contact the webmaster regarding problems with the website.

Please support publication of the MMD by donating online

Please Support Publication of the MMD with your Generous Donation

Pay via PayPal

No PayPal account required

Translate This Page