How can I combine several MP4s?

RightMACatU

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Original poster
Jul 12, 2012
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I have converted several of my home movies to MP4 and would now like to combine several of them into one file. How can I simply merge these files?

Played around with iMovie but it must import all movies... taking forever.
I've tried VLC and QuickTime Player: saw nothing there.

Thanks.
 

fa8362

macrumors 65816
Jul 7, 2008
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I'm not aware of any editing software (that allows joining clips) that doesn't require importing.
 

RightMACatU

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Jul 12, 2012
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QuickTime Pro allows you to open the first movie; click copy; open a second movie; then paste; and so on.
 

RightMACatU

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Jul 12, 2012
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I found a solution with QuickTime Player. No need to buy the Pro version

Link: http://www.macyourself.com/2009/03/18/merge-multiple-video-files-using-the-free-version-of-quicktime/


A lot of times when you’re dealing with video you run into a situation where you want to merge a movie file with another but aren’t concerned with things like transitions or titles. Using a video editor like iMovie does the job but it’s far too much effort for something so simple. Luckily, hidden in the standard free version of Apple’s QuickTime Player is the ability to drag & drop video clips together.

To start off, open a video in QuickTime. Now position the program’s playhead where you would like your next video clip to be inserted. It can be at the beginning, anywhere in the middle, or right at the end. Once you have done that, locate your second movie file in Finder. Select the file and drag & drop it right onto the QuickTime window. Playing the whole movie will reveal that the clips have now been combined and are acting as if they were a single video. This trick can be applied with any number of files — you’re not limited to just two.

Here’s where things get kind of tricky. Since only QuickTime Pro has the ability to save movies from the File menu, we don’t have the luxury of using that option here. Instead, you have to close the video. Only then will you be greeted with the option of saving your merged file. Click the Save button and, in the dialog box that comes up, choose “Save as a self-contained movie.” It gets messy if you don’t choose this setting, so make sure you don’t skip it before continuing. Click Save once more and you will have a merged movie created entirely with the free version of QuickTime!

One last bit of information for anyone who is curious… you can combine any video format that QuickTime supports (both out-of-the-box and with the help of plugins like Flip4Mac and Perian). So a .mov file can be dragged on top of a .avi file, a .mp4 can be merged with a .wmv, and so on. Varying video resolutions can also be combined, although the smaller file will be anchored to the top-left corner with black filling the rest of the frame. It would be nice if it scaled to fit the larger video’s resolution, but that’s getting picky. Free is free, right?
 

nixietoob

macrumors newbie
May 30, 2013
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California, USA
Nice find RightMACatU !! My video needs are simple & skills are primitive (I doubt I’ll move beyond iMovie). This is an excellent basic mechanism to know about. Thanks! :)