Join Multiple MP4s together

[Oracle 85]

Currently using "YAMB", but this seems to be reliable only 1/2 of the time I want to join 2 or more files together.

 

What are some other free software I can use to accomplish this same goal. I'd prefer it not to be a video editing software, like Sony Vegas, but not the end of the world if I have to use actual editing software.

[naeonline 27]

My MP4Box GUI is pretty good at this.

[lorac 118]

I'm pretty sure you can do this with mkvtoolnix.

 

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[ryandavidg 30]

Yes, I use MKVToolnix for this task. Select the first file as a source. Then, right-click on that file in the source window and choose "append" to choose the next file - repeat. Note that the final container file will be MKV, but the contents will not have been reencoded so there won't be any loss of quality. But this assumes that the different segments of video are the same when it comes to codec, resolution etc. If they are different you are going to have to reencode a new video from the parts, using video editing or ripping software and appropriate resizing.

 

If you don't want an MKV file as a final container then you could still use MKVToolnix to stitch the files together, then something else to change the resulting container to MP4 (eg ffmpeg or MP4Box) but in that case it might be best to go with MP4Box in the first place.

[alexpaton 10]

I have become a big fan of shotcut, which allowed me to join a couple of 100 tv programs that had been cut into 2 or 3 parts, very quickly. 

 

MKVToolnix seems to have a very interesting way of doing things too.  I presume that as it does things in that way, it can join videos with different resolutions?

[ryandavidg 30]

As far as I'm aware if you want to join video clips with different resolutions you need to reencode using a video editor or ripping software. Tools like MKVToolnix can be used to avoid the need to reencode if the clips are identical in terms of codec/resolution.

[alexpaton 10]

I'll have to try it out.  I have a number of youtube downloads, many of which are half an episode each.  I suspect that youtube intentionally trims or adds 2 pixels to files so that you can't easily stitch them together.  If MKVToolnix can manage to create a container, which acts as a self contained playlist (if you get what I mean), then possibly, it can handle that without re-encoding.  I'm a Linux user, so always have MKVToolnix installed.