I want to split up some large files so that I can post some scenes I think FF members would enjoy.

I'm a Mac user and use MacHacha successfully to join files. I've also managed to split in the past. But at the moment when I try I just get this message:

MacHacha can't handle files with Unicode names.

You can instead rename the file with plain ASCII characters and come back again later...

Can anyone advise? PM me if you like, thanks.