NTSC CRT Resolution

Discussion in 'Off Topic Discussion' started by Micjohvan, Jan 11, 2010.

  1. Micjohvan

    Micjohvan Familiar Face

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    Ok quick question here.

    Say I have a video file I want to put on a DVD disc so I can watch it on my TV. What resolution would I want to convert the video file to before using my dvd making program on it?

    I have a HDTV that can do 1080p but I dont want to do that cause I cant watch my dvd later on a old screen if I take it somewhere with a SDTV. Also the normal DVD player wouldnt output it at that resolution correct?

    I was thinking 640x480 would be a safe bet for a homemade dvd? Problem is the video gets kinda messy when up'ed to that resolution :(
     
  2. hl718

    hl718 Site Soldier

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    NTSC has 525 interlaced lines of resolution. Of that, a few more than 480 are visible, with the rest being outside the standard display area and carrying other data.

    Standard NTSC DVDs store video at 720x480 or 704x480. This is roughly equivalent to 640x480 on a PC because NTSC TV uses a 0.9 pixel aspect ration whereas computer displays use a square pixel (1.0) aspect ratio.

    If you just use the defaults, your DVD mastering program will spit out a 720x480 image with a PAR of 0.9.

    -hl718
     
    Last edited: Jan 11, 2010
  3. Alchy

    Alchy Illustrious Member

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    Why are you converting twice? Just go straight to DVD.

    If that's not possible, state what tools you're using and what the source material is.
     
  4. Micjohvan

    Micjohvan Familiar Face

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    Its a FLV video. Thus to my knowledge it needs to be converted to something like WMV before the dvd program will accept it.

    I dont know the name of the DVD program off the top of my head. Its a simple one by Nero or something like that. You can make menus and titles and stuff for it to. Came preloaded on one of my older PCs.
     
  5. 3do

    3do Segata Sanshiro!

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    I've used the nero program you are talking about (Nero Vision i think) and if thats the right one then i'm sure it can handle FLV's or at least from version 5 of Nero vision it can.
     
    Last edited: Jan 11, 2010
  6. retro

    retro Resigned from mod duty 15 March 2018

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    I think you mean MPEG. No point converting to anything else if you're going to do it that way!

    What resolution is the FLV in the first place?
     
  7. Alchy

    Alchy Illustrious Member

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    FLV's essentially just another container, so the resolution isn't fixed. (Edit: sorry, misread you. Assuming it's from youtube it'll be 320x240, unless it's specifically been designated a 720p/1080p video.)

    Micjohvan: In this instance just as a quick fix I'd convert the FLV to MPEG-2, assuming your DVD player can cope (most will). In terms of minimum fuss, VLC player can transcode, so if you have that already then you're set. Otherwise you'd need to find a suitable FLV to MPEG application, there should be freeware solutions. If you're set on making a DVD with menus then try to transcode the FLV to raw AVI (uncompressed) and then make a DVD from that.
     
    Last edited: Jan 11, 2010
  8. Micjohvan

    Micjohvan Familiar Face

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    there 480x360 native (the flv's) So what im doing now is converting them with a app into WMV files of the highest quality I can and making them 640x480. So far its doing decent and the outcome looks fairly good if I do say so myself :)

    After I have them at WMV I will attempt the DVD making part with those.
     
  9. Denryu

    Denryu マスコット

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    Did you try DVD Flick?
    Works just fine with FLV and any other video format I've tried.

    It's also completely free and open source. :110:
     
    Last edited: Jan 12, 2010
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