How to read a multi session CD in LinuxFollow @ggarron
If you have a multi session CD and you want to read some specific session of it, mount it with this command:
mount /dev/cdrom /mnt -t iso9660 -o session=0
From the man page session option is used for:
Select the CDROM session to mount. Defaults to leaving that decision to the CDROM driver. This option will fail with anything but a CDROM as underlying device.