MP4 Maximum File Size?

I just ripped my Blu-Ray version of Planet Earth to MP4's.

Each Chapter was burned as a separate MP4 file.

There are 10 Chapters in total, so I have 10 separate MP4 files.

Each file is around 1.78GB at 3700kbps at 720p.

What I want to do now is merge them together into one file. Then add custom chapters. Anyways, I have Quicktime Pro 7 and basically have been copying them all into one file, but once I try to copy the 7th file/chapter into the cumulative 6 previous files that are now in one continuos file, it doesn't really add anything.

Is it not working because there is a limit on the file size of the file of an MP4? Any help would be greatly appreciated.

 

I want one mp4 because I consider it one movie, and it has to be mp4 because of the apple tv.

I tried joining clips in mpeg streamclip but it keeps returning a file with 0kb, since I am using the Save As... function because I don't want to re-encode all of the stuff.

Adding chapters is not a problem I can easily do that once I have the whole file in one.

If anyone has anymore advice it would be greatly appreciated. Thank you.