Greetings, I finally upgraded from Hardy about a month or two ago. I now have a multimedia content creation system that cannot read or write optical media. I consider this sub-optimal. When I go to Places>cdrom0, a window pops up that says: Unable to mount cdrom0 mount: special device dev/scd0 does not exist The drive is an HP dvd840. I can boot live cd's from the device, I used it to upgrade to Karmic. It worked fine in Hardy. In my Googling, I came across the same error back in Intrepid--in Launchpad, the bug was closed due to inactivity without being resolved. I also noted the exact same error being reported for Karmic on the Ubuntu forums; the original poster gave up, but someone then wrote in that he replaced his IDE optical drive with a SATA one, which then worked. I think it would be better if people could use what they have, either IDE or SATA. I am willing to file a bug, but first I wanted to see if anyone here has a solution. What other information do you need to find out what's going on? Thanks, Paul