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Got a bunch of .mp4 videos (info shows H.264 Video + AAC Audio) that are chapters of a larger video.

I'd like to merge them, but not sure which is the best way. I don't have Quicktime Pro, but I'll get it if that's the best way to do this.

Edit: Just to clariify this is Mac OSX 10.6 I'm on.

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3 Answers 3

up vote 2 down vote accepted

Quicktime Pro is a must-have in such situation. iMovie is great if you need a simple tool, but you may loose quality in the process.

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Chose this answer because I tried the iMovie route and it didn't work. –  r00fus Oct 22 '10 at 18:09

Well, I'm late to the game but the best way IMHO would be to just use mp4joiner and be done with it.

It just does one thing, merging mp4 files, and does it really well and simple. Also: Free and open source and also working on Linux and even Windows.

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You don’t specify your OS but if you have OS/X, then you probably have iLife, then you have iMovie. Merging all that with iMovie is extremely trivial. Just import the videos to iMovie and compose the final movie using all the parts you want to use.

Effects, Transitions and Captions are a bonus ;)

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Thanks, I've edited to clarify this is on OSX. I assume this is a lossy conversion? –  r00fus Sep 16 '10 at 17:36
1  
If the videos are mp4 (H.264+AAC) the quality loss should be minimal (if all the videos are in the same format). However, due to the nature of what you’re trying to do, yes, since H.264 is already compressed, operating with the video and then exporting a new movie will have to recompress it. Quicktime Pro allows you to “merge” one video, but only that. You can put one after the other. Unless you’re using extremely super 1080p videos, I doubt iMovie will be a problem. –  Martín Marconcini Sep 16 '10 at 18:03
    
Actually the videos are originally AVI/h.264 which I iSquinted to mp4 anyway, but I don't think iMovie supports AVI... –  r00fus Sep 21 '10 at 5:17

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