mkisofs -o /tmp/cd.iso -R -J  /export/home/morten/Win2k_USB_Backup 


mkisofs: Error: 
/export/home/morten/Win2k_USB_Backup/C++/(ebook - CHM) Programming Windows 98, 
5th Edition - Charles Petzold (incl. sample code).zip 

and 

... (ebook - CHM) Programming Windows 98, 

 have the same Joliet name
mkisofs: Joliet tree sort failed.

bash-3.00$ uname -a
SunOS solaris-devx 5.11 snv_64a i86pc i386 i86pc