dd if=/dev/dvd of=dvd.iso # for dvd
dd if=/dev/cdrom of=cd.iso # for cdrom
dd if=/dev/scd0 of=cd.iso # if cdrom is scsi

# To make an ISO from files on your hard drive, create a directory which holds the files you want. Then use the mkisofs command.
# This results in a file called cd.iso in folder tmp which contains all the files and directories in /tmp/directory.
mkisofs -o tmp/cd.iso /tmp/directory 

#for long names use
mkisofs -l -o temp.iso files_to_save/*

http://www.tldp.org

To make an ISO from your CD/DVD, place the media in your drive but do not mount it. If it automounts, unmount it.

Make an ISO Image from console

linux

Bash