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  1. Member
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    Oct 2003
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    Buffalo NY
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    I have a number of 'split' DVD's (vob's) that I want to convert to a single mp4. I already converted most of these to mp4's, I just need to join them.

    I have spent part of a day trying to find a somewhat simple 'Joiner'/'Merge' program, but couldn't.
    I thought MP4Tools was it, but after wasting an hour I now find out it's only a 'Wintel' program, no AMD which is BS. It would of been the ideal program except for the authors narrow-mindedness.

    Most of the basic 'video editors' don't seem to have a 'join' option that I could see. I did try Movavi, but the resulting file was humongous. The two test files I was 'joining' were only around 850MB, but the end result, even after using a 'custom' resolution (716x366), the resulting size was 1.4GB, almost twice the size. No idea why.

    Any suggestions? I really don't need a full editor.
    When not in use, turn off the juice!
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  2. Video Restorer lordsmurf's Avatar
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    TMPGEnc Smart Renderer (payware, with trial)
    Totally worth it.
    Can also fix constant audio skew.
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  3. Originally Posted by videobruce View Post
    I have a number of 'split' DVD's (vob's) that I want to convert to a single mp4. I already converted most of these to mp4's, I just need to join them.

    I have spent part of a day trying to find a somewhat simple 'Joiner'/'Merge' program, but couldn't.
    I thought MP4Tools was it, but after wasting an hour I now find out it's only a 'Wintel' program, no AMD which is BS. It would of been the ideal program except for the authors narrow-mindedness.

    Most of the basic 'video editors' don't seem to have a 'join' option that I could see. I did try Movavi, but the resulting file was humongous. The two test files I was 'joining' were only around 850MB, but the end result, even after using a 'custom' resolution (716x366), the resulting size was 1.4GB, almost twice the size. No idea why.

    Any suggestions? I really don't need a full editor.

    Have you tried Avidemux?

    Or FFmpeg?

    Code:
    ffmpeg -f concat -i list.txt -c copy joined.mp4
    List.txt should contain a list of the files you want to join, like this:

    file 'file1'
    file 'file2'
    file 'file3'
    file 'file4'
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  4. Originally Posted by videobruce View Post
    I have a number of 'split' DVD's (vob's) that I want to convert to a single mp4. I already converted most of these to mp4's, I just need to join them.
    VOBs on DVD are split after 1 GB on a binary level. It is recommended you first append the VOBs (e.g. using ffmpeg's "concat protocol" *), then convert to whatever you want. Otherwise you risk problems at the split points.




    * (You can read about ffmpeg's appending modes ("concat demuxer" as mentioned by sfu10 vs. "concat protocol") here.)
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  5. Originally Posted by sfu10 View Post


    Have you tried Avidemux?
    For simple splitting/joining of similar type files, this would be my recommendation as well.
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  6. Member budwzr's Avatar
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    You can "concatenate" them too. In a DOS window. I just don't remember how to do it. I did do it myself before, so I know its doable. Heck yeah, theres no reencoding either.

    Thats one of the reasons why Mpeg2 is an excellent editing format.
    Last edited by budwzr; 6th Feb 2019 at 16:55.
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  7. Avidemux is a great tool for doing this, but it only merges video and audio components. Is there a way to include the chapters and chapter names that may exist in the separate files?
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