This guide is about how to join MP4 video files on Mac os x.

1. Join/Merge/Combine MP4 Video into One on Mac
Question
"I have 2 parts of a movie converted; both MP4's and would
like to join them to a single file. Can anyone suggest a quick
and painless way to get this done?"
What is MP4?
MP4 file is most commonly used to store digital audio and
digital video streams, but can also be used to store other data
such as subtitles and still images.
MP4 Joiner for Mac is the best and fastest Mac video Joiner
software program for joining several MP4 files into one bigger
MP4 format on Mac OS and turns them into professional
movies you can share.
Tutorial: Join MP4 Video Files on Mac?
1: Free Download and run MP4 joiner for mac software
It's clearly free and absolutely safe to install and run MP4 joiner
for mac After running it, you will see the main interface.

2. 2: Click "Add" to import MP4 files.
Click on "Add" button, it will open a window, browse the MP4
files you wish to Join/combine.
3: Set output format and output path
Select an output format in the drop-down list next to "Profile"
filed. Setup the directory to store the joined video in the
"Destination" filed on the bottom.
4: Join MP4 files into one file
Check "Merge into one file" option to join/merge/combine MP4
files in file list, then click the bended arrow button to start

3. joining.
5: Click big "Start" button at the bottom of the Window
Start to join/merge/combine several MP4 files into one file,
then Click "Open" on the bottom middle to find the joined
movie files.
You can also join/merge/combine AVI, MPEG, WMV, DIVX,
XVID, VOB, MPG, 3GP, FLV, RM, MOV, M4V and any other
video formats together, you can join multiple video files into
one large file and export to AVI, MPEG, WMV, RM, MP4
format.
Mac MP4 joiner is also a video editor that will allow you to
customize your video joins by adding effects such as fade-in
and fade-out transitions. Additionally, you may also edit your
video's bitrate, frame rate, and video and audio qualities such
as aspect ratio in order to create the perfect video. The
program also comes with its own built-in player that will in turn
provide a very fine experience in video joining on Mac OS.