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When Exactly does Nero Video do 'Smart Encoding' ?

I have some mp4 files ( Gopro )
Even when I select the Output as mp4, it seems to be doing encoding again.
All I want is to just create one large file without losing any quality ( somewhat like what mp4joiner program does )

Is there a way I can make Nero Video to recognize teh fact that teh output quality I need is exactly same as teh input quality and format ?
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  • Smart Encoding is designed to speed up the encoding process by only processing those parts of your project which don't fit into the target parameters you've specified.

    The joining process when using multiple videos probably requires some encoding. In addition, the technical parameters for your GoPro video may not exactly match those for the mpeg-4 format used by Nero. If you know the exact technical parameters for the GoPro video (In any of the Make Options, you can double click on a video and open the metadata tab to see the important ones) and you're exporting with mpeg-4 selected, you can configure some things in the mpeg-4 Profile.

    If you're burning the multiple files to a video type disc, you can also change parameters in the Recording Format Options.
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  • Thank you Wither.
    Is there a configuration I can set at the project level that specifies the target ? ( I know it can be set at the Export screen )

    I looked at the Metadata but didn't see much other than the frame rate.

    (
    In one of the other video editing software, I ve seen an option to set teh target to be the same as a clip that you select. ( So that I could give one of my input clips while creating teh project and specify that "whatever the numbers are for this clip, I want exactly the same numbers for the output" )

    )
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  • Okay, I'll ignore export options since I think we covered them. You should be able to see far more parameters than the frame rate in the meta data. Those other parameters are, in my opinion, more important than the frame rate since that's pretty much a given.

    I don't know which version of Nero you're using.

    When you're in any of the editing screens or the Content screen (for a disc type project), you can select Options, Movie Options. There, you can select presets or, you can select Advanced Settings which gives you more options. In the Video section, you can even select Custom to set some parameters. I would defer to tech support in regards to how those settings are affected if you decide to either export or burn a disc type project since each of those options have their own settings. If you burned a project, you can choose "keep source quality" in the recording format settings.That assumes that the size of the project is suitable for the disc type you've selected.
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  • Hi Rajesh, Wither, SmartEncoding is only available for disc output, not for file output. So for joining several mp4 files into one big one without loss of quality a separate tool seems the best option. Maybe you want to try this tool
    https://www.mp4joiner.org/en/
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