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DVDLab Pro and video formats

Discussion in 'Video to DVD' started by k0k0m0, Jun 17, 2005.

  1. k0k0m0

    k0k0m0 Regular member

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    I'm using DVDLab Pro and I've encountered this same problem whether the movie is in PAL or NTSC. It appears everytime I add a movie to the asset box.
    [​IMG]
    I'm using WinAvi to convert my files to MPEG-2 (eg for NTSC movie), am I doing something wrong that makes DVDLab Pro give me the same error msg everytime?
    [​IMG]
    [​IMG]

     
    Last edited: Jun 17, 2005
  2. rebootjim

    rebootjim Active member

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    352x240 is known as 1/4 D1, and although DVDLab will author them, they are not really standard, which is why you get the warning. Some players just can't play them (older Toshi and Panny are two that I know of).
    On the mpeg2 tab, change it to read 720x480, and they'll be compliant, although you may lose some quality, and the filesize may be larger.
     
  3. k0k0m0

    k0k0m0 Regular member

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    So Jim what you suggest is convert all those to 720 X 480 Full D1 for NTSC and for PAL to 720 X 576 Full D1 ???

    That's the only resolution I should use for both systems?
     
    Last edited: Jun 18, 2005
  4. k0k0m0

    k0k0m0 Regular member

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    One further question, that it may be dumb perhaps...

    I've got audio & video demuxed; I'm only resizing my 352x240 movies to 720x480, but I can leave audio intact, non?

    Audio frequency already is at 48,000 and bitrate at 192,000.

    I think nothing else has to be done regarding audio, but I just wanted to be sure in case I had to remux and then convert and then demux (which I regard unnecesary according to my humble experience so far)

    Can anyone confirm it? Thnx as usual
     
  5. k0k0m0

    k0k0m0 Regular member

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    Ok... files are now at 720x480, I left the encode tab as shown above, and only changed on the MPEG tab the picture size.

    But DVDLab Pro keeps on telling me that the file has an incorrect aspect ratio!?!?!? What am I doing wrong?
     
  6. rebootjim

    rebootjim Active member

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    720x480 is NTSC...did you perhaps want PAL?
     
  7. k0k0m0

    k0k0m0 Regular member

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    I'm sorry, perhaps I didn't make myself clear...

    I'm on my NTSC project and got all movies in that resolution. But I still get that unspecified aspect ratio
     
  8. k0k0m0

    k0k0m0 Regular member

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    This is what Avicodec tells me about the specifications of the newly encoded movie
    [​IMG]

    As you can see, it's now 720*480 with 4:3 and fps 29.97; clearly a letterbox 4:3 NTSC movie, isn't it?

    But DVDLabPro still indicates it as a non-valid like the first picture of this thread... *puzzled*

    Could it be, maybe, a problem with WinAVI MPEG-2 encoder???
     
    Last edited: Jun 19, 2005
  9. rebootjim

    rebootjim Active member

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    Combined bitrate of audio and video exceeds dvd spec. (note your video bitrate is 9000kbps!)
     
  10. k0k0m0

    k0k0m0 Regular member

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    And which is the highest bitrate suggested? Why is 9K wrong?
     
  11. rebootjim

    rebootjim Active member

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    On a commercial disk, 9000 may be acceptable, combined with 224kbps audio, and remain under 9500kbps.
    On a burn, the lines on the disk are not so defined, and players cannot absorb that much data, decode it, and put it out to your TV.
    In most cases, it is not recommended to exceed 9000kbps combined, and even then, probably 50% of today's players will choke on that.

    The MPEG-2 codec (for DVD spec) allows for encoding between 1Mbps and 9.8Mbps. In practice 8Mbps is the maximum bit rate you should use, for 2 reasons ...
    1.) You need to allow some bandwidth for audio, menus, and subtitles.
    2.) Some DVD-video players will struggle to decode bit rates above 8Mbps (8000kbps).
    Most commercial dvd's, use a bitrate between 5.5mpbs, and 6mpbs to maintain compatibility with the largest number of players.
     
    Last edited: Jun 19, 2005
  12. k0k0m0

    k0k0m0 Regular member

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    Gosh... I was not aware of how delicate it could be... wow... I'm gonna try to down that bitrate!

    Thnx again Jim

    Oh, by the way, I did some hometesting myself and I found out that I didn't get that nasty warning message from DVDLab Pro if I encoded with another program. I tried Adobe's (which is darn slow) for a short video (1 minute) and DVDLab Pro accepted it perfectly. Could it be WinAVI is not so good?
     
  13. rebootjim

    rebootjim Active member

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    Now you've got the idea. Winavi has never been known to be "good".
    You'd be better off using VSO DivX to DVD, and then importing the .vob's into dvdlab.
     
  14. k0k0m0

    k0k0m0 Regular member

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    Well, that was something I didn't know... you say can I import VOBs directly onto DVDLab Pro then?
     
  15. rebootjim

    rebootjim Active member

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    Yes. DVDLab Pro will specifically ask for the first vob of the actual movie. This is the ...1_1.vob, and it will join, and demux for you.
    You're then free to add your menu's and chapters.
     
  16. k0k0m0

    k0k0m0 Regular member

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    Well, good to know that. I was not aware of it! It demuxes every movie it encounters on VOB's?
     
  17. rebootjim

    rebootjim Active member

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    It demuxes everything.
    You're better off to start with elementary streams to begin with.
     
  18. Minion

    Minion Senior member

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    I believe your Problem is you encoded these Files to Mpeg useing a 1:1 aspect Ratio which is Not supported in the DVD Specification, If these are Mpeg-2 files you can use a Program called "DVD Patcher" to Change the aspect ratio Flag in the Mpeg-2 file and then DVDLab will not give you the error or you can Start from scratch and Make sure you encode useing a 4:3 Aspect ratio....

    I use the SIF/CIF 352+240 DVD Standard all the Time to make DVD"s and I have never gotten any sort of Message from DVDLab as the SIF DVD Standard is 100% DVD Compliant as Long as it Obeys all of the Other Rules for DVD Compliant Files ......

    Cheers
     
  19. rebootjim

    rebootjim Active member

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    I thought of that, but according to the picture from avicodec, it's 4:3
    [​IMG]
     
  20. Minion

    Minion Senior member

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    I thought the Files were encoded to 352+240 useing the SIC/CIF standard but the AVICodec Screenshot you showed has it at 720+480??

    Also the DVDLab Error message States that the Problem is the Aspect Ratio Flag is Neither 4:3 nor 16:9...

    Are we taking about Two different sets of Files here??
     

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