jack@home:/tmp/standard$ dmesg | tail
[30041.805269] sr0: Current: sense key: Hardware Error
[30041.805273]     Additional sense: Logical unit communication CRC error (Ultra-DMA/32)
[30041.805281] end_request: I/O error, dev sr0, sector 1132
[30041.805285] printk: 5 messages suppressed.
[30041.805288] Buffer I/O error on device sr0, logical block 283
[30041.841556] sr 1:0:1:0: SCSI error: return code = 0x08000002
[30041.841563] sr0: Current: sense key: Hardware Error
[30041.841566]     Additional sense: Logical unit communication CRC error (Ultra-DMA/32)
[30041.841574] end_request: I/O error, dev sr0, sector 1132
[30041.841579] Buffer I/O error on device sr0, logical block 283
jack@home:/tmp/standard$