Re: Problems with dvdauthor - please help.

From: Peter (phaywood_at_alphalink.com.au.NO.SPAM)
Date: 01/03/05

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    Date: Mon, 03 Jan 2005 00:57:50 GMT

    Groovy hepcat George was jivin' on Tue, 28 Dec 2004 00:58:39 -0500 in
    comp.os.linux.setup.
    Re: Problems with dvdauthor - please help.'s a cool scene! Dig it!

    >Hi all,

      Howdy! And sorry for taking so long to get back to you!

    > It looks like the video I was trying to write to a DVD did not have
    >some information in it required by dvdauthor. I looked at the man page
    >for "mpeg2enc" and the "-f" option states the following:
    >
    >-f|--format 8
    >- DVD MPEG-2 for 'dvdauthor'
    >This version adds special dummy navigation packets into the output
    >stream that the dvdauthor tool fills in to make a proper .VOB for
    >authoring. Bit-rate defaults to 7500kbps, buffer sizes to the maximum
    >permitted by the DVD specification.
    >
    >This is what was missing in my mpeg file.
    >
    >I used the "tovid" tool to properly convert my mpeg and it worked! I was
    >able to successfully get qdvdauthor to make a dvd for me. (mind you,
    >there were some other big bugs in the qdvdauthor tool that I figured out
    >how to avoid. :))
    >
    >However, there was a big drop in quality from the original MPEG video
    >using "tovid". It reads the mpeg and modifies it. I'm sure I could
    >optimize all of the settings for mpeg2enc but there are so many and I
    >know very little about mpeg files.

      I've not used tovid, so i can't help you with it. But maybe there's
    a way of specifying the bit rate. I use transcode, and although it
    uses mpeg2enc to do the actual conversion, it has a different default
    bit rate to that specified above. I have to specify the bit rate
    explicitly to get any decent quality. Maybe you need to do the same
    with tovid.

    >What I'd like to know is what the "special dummy navigation packets" in
    >the mpeg file are? If I knew this, I could add them myself without
    >having to re-process the mpeg file again (and decrease the video quality).

      I can't help you with that, i'm afraid.

    >P.S. Thank you noi, Wiseguy, and Peter for your help! I really
    >appreciate it! :)

      No problem. :) 

    -- 
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    • Re: Problems with dvdauthor - please help.
      ... Problems with dvdauthor - please help.'s a cool scene! ... >This is what was missing in my mpeg file. ... explicitly to get any decent quality. ... Dig the even newer still, yet more improved, sig! ...
      (comp.os.linux)
    • Re: Problems with dvdauthor - please help.
      ... Problems with dvdauthor - please help.'s a cool scene! ... >This is what was missing in my mpeg file. ... explicitly to get any decent quality. ... Dig the even newer still, yet more improved, sig! ...
      (alt.os.linux)
    • Re: Problems with dvdauthor - please help.
      ... Problems with dvdauthor - please help.'s a cool scene! ... >This is what was missing in my mpeg file. ... explicitly to get any decent quality. ... Dig the even newer still, yet more improved, sig! ...
      (comp.os.linux.setup)
    • Re: Problems with dvdauthor - please help.
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