i join 5 files with same format MP4 640x360 (NTSC) 16:9 h264 and aac stereo , all sound ok, but video corrupted except the last part. earlier version all video ok but audio disappear except the first part. ill wait for your next release. and thanks for your effort for making this software.
The software works, but the installer is absolutely horrifying. It tries to get you to install several annoying browser addons and extra software that no one needs and that have nothing to do with this program itself. Be careful!
People seem a little confused, so I'll clear it up. It's the sourceforge installer that asks to change your homepage and all that. MP4 joiner itself doesn't do that after you get to it. Just pay attention to prompts, that's good advice for downloading /anything/ online because they all try to do that anymore. With that out of the way, the program does just as it says, more more no less. On those grounds it's pretty great. It did just, stop working on me and I had to reinstall. Don't know why.