Hello, I'm running the Feisty Fawn on a one-year-old desktop computer with two CD/DVD drives. For about 4 weeks, I had no problems reading or burning data DVDs in either drive. This morning I started getting errors trying to mount two particular data DVDs. When I try to mount either of these two DVDs by placing the DVD in the drive, the following error appears: <div style="margin-left: 40px;">Invalid mount option when attempting to mount the volume </div>The kernel log (/var/log/kern.log) shows the following error messages: <div style="margin-left: 40px;"> May 20 15:05:18 linux kernel: [26969.108806] sr 1:0:0:0: SCSI error: return code = 0x08000002 May 20 15:05:18 linux kernel: [26969.108812] sr0: Current: sense key: Medium Error May 20 15:05:18 linux kernel: [26969.108817 ] Additional sense: L-EC uncorrectable error May 20 15:05:18 linux kernel: [26969.108823] end_request: I/O error, dev sr0, sector 64 May 20 15:05:18 linux kernel: [ 26969.108827] printk: 26 messages suppressed. May 20 15:05:18 linux kernel: [26969.108831] Buffer I/O error on device sr0, logical block 8 May 20 15:05:18 linux kernel: [26969.110338] sr 1:0:0:0: SCSI error: return code = 0x08000002 May 20 15:05:18 linux kernel: [ 26969.110342] sr0: Current: sense key: Medium Error May 20 15:05:18 linux kernel: [26969.110347] Additional sense: L-EC uncorrectable error </div>The same messages appear if I tried to mount the DVD in the other drive (although sr0 becomes sr1). Do these error messages indicate a bad DVD drive, a bad DVD, or a configuration problem? I tried mounting several other data DVDs in the desktop computer, and they all mount successfully, which makes me think that the two data DVDs are bad. But I took the two data DVDs that do not mount, placed them in a laptop running openSUSE, and they mounted fine there, which makes me think that the DVD drives on the desktop are bad. Can someone explain this? Thanks very much for your help! Dom Incollingo