To create ISO file from CDs is easy by follow this command
In your shell typing follow this
1. dd if=/dev/'your device' of=/your path/name.iso
your device should check from
ls /dev
You can see 'cdrom' and use it for dd command.
Example.
$ dd if=/dev/cdrom of=~/myfile.iso
Comment: ( ~ = /home/user )
You can see manual of "dd" command for detail of option.
