After upgrading from Ubuntu 9.04 my dvd drive/burner is no longer recognized. Im running a laptop. If I start the computer the drive doesnt even appear. If i start the computer with a disc in the drive the drive shows up as cdrom0. However, no cd burner software will let me burn a disc and the disks dont play. If you click on the cdrom0 it generates an error that states: "special device dev/scd0 does not exist" Im a total noob with ubuntu, so if someone could give me advice on what steps I should do to narrow down this problem, or if there is a fix, id greatly appreciate it. Thanks.