MP4 file joiner software

I have been looking for a software that can join multiple MP4 files into one large one that will work on the PSP. 

Does this (or an alternative way) exist? 

I tried one shareware which can join the files into a bigger one but PSP did not like it.

Any info is appreciated. 

You are kidding right?  What good is it if you can't watch the movie?

Anyway I just came up with the work around which is much more time consuming:

1) Convert video source to a format that can be merged like AVI and MPEG.   

2) Merge the video files into one big one (AVI, MPEG, etc.)

3) Convert the big file into MP4. 

In theory that should work but I have to verify it.  I hope there is one software that can reduce the steps/time for the whole process. 

I mean :
Use Windows Movie Maker to join the series of .mp4 files into one big file (although they won't be viewable on your pc) and then put that big .mp4 file on to your psp.

I mean :
Use Windows Movie Maker to join the series of .mp4 files into one big file (although they won't be viewable on your pc) and then put that big .mp4 file on to your psp.

HandheldJunkie

That won't work. Any MP4 exporters for Windows Movie Maker don't use the proper format for PSP playback. 

[QUOTE="HandheldJunkie"]

I mean :
Use Windows Movie Maker to join the series of .mp4 files into one big file (although they won't be viewable on your pc) and then put that big .mp4 file on to your psp.

Zeke129

That won't work. Any MP4 exporters for Windows Movie Maker don't use the proper format for PSP playback. 

Sounds like you tried a few things already.  

Let me know if there is no such software yet so that I stop wasting my time searching for it.  

I can try the work around. 

Try this out

http://yamb.unite-video.com/download.html 

Try this out

http://yamb.unite-video.com/download.html 

kimbokasteniv

WOW this software is incredible.  It works!!!

Thank you very much.  I really appreciate the link.  

Also big thanks to the person who developed the software - what a genius. 

I did two different joins and

one worked great

but the other one got lips sync issue (a few second off between video and audio).

Any idea on how to fix this? 

Well I've never actually had to use this software before so I have no experience with it. But you can check at the doom 9 forums.

http://forum.doom9.org/

They have a lot of information on this sort of thing and they might have something about yamb.