Philips DVDdrive on Dell latitude 520 fails to show files through Win.Explorer

Ijust purchased a new Dell Latitude 520.It comes with Philips DVD ± RW.
If i put a CD or DVD with music it can play the siongs through the WindMedia problems,but I just cannot see the files through the Windows Explorer;no matter if I double-click on the DVD icon on My Computer or if I right-click on it and then click on Explore,it jist doesent show anything…i wonder if it is a wWindows set-up problem or there.s something with the Optical Device driver’or with the Philips Device itself…
Anybody that have encountered such a problem