Linux Lite does not identify my CD/DVD Drive

[az-suomi]

The response in terminal when I type: inxi -d:

Code:

HDD Total Size: 160.0GB (7.5% used)
           ID-1: /dev/sda model: SAMSUNG_HE160HJ size: 160.0GB
           Optical: /dev/sr0 model: PLDS DVD-ROM DH-16D5S
           dev-links: cdrom,dvd
           Features: speed: 125x multisession: yes
           audio: yes dvd: yes rw: none

When I go into preferences in Xfburn, it cannot identify a cd/dvd drive. When I order it to burn an ISO image, the start button is greyed out as are some of the other functions.