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  1. I encoded some video with TMpgEnc Plus (VBR 6000kbps average bit rate and PCM audio) and authored it with DVD-Lab (after realizing that IfoEdit is not as stable as it should be). After authoring to hard disk I played it with PowerDVD and it plays fine. Then I burned it to DVD+RW and tried playing it with PowerDVD. What I get is constantly studdering video, as if it's playing at 15 fps. Very disturbing. I also tried burning with ImgTool and I get the same thing. Any ideas? Could the high bitrate and PCM audio be causing it to lag? I think I'm going to try authoring it with IfoEdit and see if I get the same problem. The problem with IfoEdit is that I cannot get PCM audio to work with it so I'll just have to encode the audio to MPEG2 audio.
    - Mike Young
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  2. Could be that the media is bad.
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  3. Hmm, I guess bad media is a remote possibility. I did reauthor it in DVD-Lab with mpeg video instead of pcm and I get the same thing -- very studdering video. I'm trying ifoedit right now. It would be a bummer to smoke a DVD-R only to get the same thing. We'll see. If anyone can think of any other possibilities, let me know. Thanks!
    - Mike Young
    My Clay Animations
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  4. The reason I'm thinking it's the media is because the files play fine in PowerDVD, but not once they were burned.
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  5. Member
    Join Date
    Dec 2003
    Location
    Chicago, IL
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    DVD Lab has a known problem with authoring disks with PCM/WAV audio and playing them in certain players. The problems most frequently occur when playing the disks in Panasonic players. See the thread on "Pulsing Sound" at the DVD Lab forum. You can re-author the disk with AC3 audio in DVD Lab (use ffmpeg to convert), or use another authoring app.
    BadgerBoy
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  6. Member
    Join Date
    Dec 2003
    Location
    Chicago, IL
    Search Comp PM
    DVD Lab has a known problem with authoring disks with PCM/WAV audio and playing them in certain players. The problems most frequently occur when playing the disks in Panasonic players. See the thread on "Pulsing Sound" at the DVD Lab forum. You can re-author the disk with AC3 audio in DVD Lab (use ffmpeg to convert), or use another authoring app.
    BadgerBoy
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  7. Well, I tried burning to a DVD-R and I get the same thing. I guess I'll try converting the wav to ac3 and give it a roll. Ac3 would be a much better option than mp2, correct? I can REALLY hear the difference between the wav and the mp2 (encoded using TMpgEnc). Will ffmpeg create a fully compliant ac3? I heard that other apps like ac3machine have issues in creating ac3 that are compatable with Pioneer standalone DVD players.
    - Mike Young
    My Clay Animations
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  8. Okay, I converted my wav to ac3 (2 ch, 448kbps) and authored in DVD-Lab and still studdering. Then I authored in IfoEdit with the ac3 and again, studdering. Maybe by video bitrate is too high? IfoEdit said that the peak bitrate was like 14Mbps. That seems very high, though maybe for a peak that's alright?

    I used TMpgEnc's 2-pass VBR default -- 7Mbps ave, 8Mbps max, 2Mbps min. I remember someone recommending TMpgEnc's "CQ" setting over 2-pass VBR. It's odd that it would play fine off my HD and on the DVD it blows chunks. That would lead me to believe that the bitrate is being bottle-necked. Any suggestions? Thanks!
    - Mike Young
    My Clay Animations
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  9. WOW!!! Talk about monumental idiocy!!! When I reinstalled Windows and PowerDVD I forgot to enable DMA on my DVD-ROM drive! I guess I figured it would default to DMA. Problem fixed!

    That's the new "step 1" for trying to resolve studdering video. Or if you are a computer science major, it's "step 0."
    - Mike Young
    My Clay Animations
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