Question : Problem: Some Video Files will not sync

I have an ipod touch and have been syncing music and video quite happily until recently.
I have added a file which is over 200MB to the iTunes video folder but when I sync the file is ignored. Within iTunes I can see and play the file but it will not load onto the iTouch.
If I add other video files, these sync OK. The only thing I can see is that the file is over 200MB. This was converted to MPG4 format from a 1.2GB file using the same softwar I have used for all the other video files.
I cannot find any thread on websites relating to this issue so I am hoping someone here can point me in the right direction.
Many thanks.

Answer : Problem: Some Video Files will not sync

Could it be that the original source is copyright protected and somehow it wont let you load it to the IPod?
Or the original file is AVI, but with a DIVX Codec and the IPod can't play it?
I use Handbrake to convert the files for my IPod Video and I have loaded and played 700+MB video files
And finally the silly question, does you IPod has enough space for this file?