[问题] split DVD 9 to 2 DVD-R

[someone]

Hi there,

I use DVD Fab to split DVD 9 (double layer) to 2 DVD-R
discs, it works well until yesterday for one DVD disc. It's about 8.4G. It should fit to two discs but DVD fab couldn't.

I don't know why. But it suggests I copy all the content to the HD...