Hi ev'body!

I'm looking for an easy way to achive the following: I have a 1.35 GB file (*.avi, XviD) and want to make a copy on two CD-R (700MB). So I need to split the source file.

I know, I can use the ffmpegX function Filter/Split to split the file, but this very unhandy: if I calculate the middle of the file in minutes and seconds and insert these digits in the corresponding fileds in ffmpegX, one of the two chunks is far beyond 700 MB (in my case 725 MB), and the other chunks (of course) is far too small (in my case 650 MB). So, the first won't fit on the CD-R. To find the "lucky" setting, where both files fit on the CD-R, is a question of trial and error.

So, my question:
Is there a function in ffmpegX to split a file with a preferred size instead of preferred time point?

Thanx 4 any help!