Joy of Think

I found a good article and some useful tools to perform hide directory in cdrom.

Use mkisofs to create iso file

mkisofs -J -o isoname directory

Change isoimage

Using a great free hex editor xvi32 to change directory attribute.

iso9660 direcory

Search directory name (case insenstive), in 3rd time, when you move back 8 bytes, it should be 02, please change to 04

Jolet directory

Search directory name as unicode-16le (please note that window use unicode-16be)(case insenstive), in 3rd time, back 8 (9bytes since unicode-be encode), it should be 04, please change it to 06.