Is 520P compatible today?

Discussion in 'Archived Threads 2001-2004' started by EricTownsend, Mar 6, 2003.

  1. EricTownsend

    EricTownsend Stunt Coordinator

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    I have a JVC XV-D723GD progressive scan DVD player that has a switch on the back to set it to 525i or 520p. I use component video cables with the switch to 520p, but my TV (Toshiba 57HDX82) says it accepts 480p, 1080i and one other that I cannot remember. Anyway, the DVD seems to be working OK but I am wondering if I am getting a progressive picture and if 520p is out of date?
    Thanks!
     
  2. SeanA

    SeanA Second Unit

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    I sort of had the same question. On the box of my Toshiba SD4800 progressive scan player, it states either 520 or 540 (I forget which) lines of horizontal resolution. I have presumed this to simply mean it actually has the capability to do a little better than 480p... but would also assume the DVD player can't do any more than want it is given (i.e. the DVD itself).

    I am a newbie, so this is mostly speculation on my part... maybe someone else will chime in.
     
  3. Michael TLV

    Michael TLV THX Video Instructor/Calibrator

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    Greetings

    525 is the same as 480 ...

    The system is comprised of 525 scan lines ... of which 480 comprise the image.

    Like saying a TV is 29 inches for tube size with 27 viewable.

    Regards
     
  4. EricTownsend

    EricTownsend Stunt Coordinator

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    So, you think it is safe to assume I am getting a progressive picture from the 520p? I think I am as the DVD player shows "progressive" on the display.
    Thanks!
     
  5. Allan Jayne

    Allan Jayne Cinematographer

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    640 x 480 regular VGA at 60 Hz (scan line rate the same as consumer video 480p) has 525 total scan lines per frame, 640 x 480 regular VGA at 70 Hz has 520 total scan lines. (Not really relevant for ordinary video because in addition the three color lines for BGA (RGB) are not the same color content as component video.)

    I do not believe that a 520 total scan line progressive frame, at the usual video 60 (59.94) fps from a DVD player will work in the usual TV progressive input, but maybe it does.

    Or maybe the label 525i/520p has a typo in it.

    Video hints:
    http://members.aol.com/ajaynejr/video.htm
     

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