On Tue, 4 Mar 2003, Ben Fennema wrote:
Download the udf verifier and run it on the disc and see if it reports problems with the disc.
How long does it take ? I've been running it for 43 minutes and it reports: MODE SENSE command: Medium Type: 1 (= 0x01) - read only READ CAPACITY command: Highest valid physical block number in last complete session: 359847 Block size: 2048 READ DISC INFORMATION command: READ DISC INFORMATION fails, skip read track info Created SCSI device host adapter id : 0 scsi id : 0 last valid block : 359847 block size : 2048 packet length : 0 nmb of sessions : 1 verify session : 1 session starts : 0 medium WR type : unknown medium SE type : unknown Inspect 1 block for presence of VAT or AVDP starting at block: 359847 err: . 359847 read 1 error block Inspect 449 blocks for presence of VAT or AVDP starting at block: 359398 err: ..ssss....... I see it adds a new dot after a certain time. And I get the following in my logs: Mar 4 15:02:45 pervalidus kernel: scsi : aborting command due to timeout : pid 4581, scsi0, channel 0, id 0, lun 0 0xbe 00 00 05 7d a7 00 00 01 10 00 00 Mar 4 15:02:45 pervalidus kernel: hdc: irq timeout: status=0xd0 { Busy } Mar 4 15:02:45 pervalidus kernel: hdc: DMA disabled Mar 4 15:02:45 pervalidus kernel: hdc: ATAPI reset complete Mar 4 15:03:45 pervalidus kernel: scsi : aborting command due to timeout : pid 4583, scsi0, channel 0, id 0, lun 0 0x28 08 00 05 7d a7 00 00 01 00 Mar 4 15:03:45 pervalidus kernel: hdc: irq timeout: status=0xd0 { Busy } Mar 4 15:03:45 pervalidus kernel: hdc: ATAPI reset complete Mar 4 15:04:45 pervalidus kernel: scsi : aborting command due to timeout : pid 4585, scsi0, channel 0, id 0, lun 0 0xbe 00 00 05 7d a7 00 00 01 10 00 00 Mar 4 15:04:45 pervalidus kernel: hdc: irq timeout: status=0xd0 { Busy } Mar 4 15:04:45 pervalidus kernel: hdc: ATAPI reset complete Mar 4 15:05:45 pervalidus kernel: scsi : aborting command due to timeout : pid 4587, scsi0, channel 0, id 0, lun 0 0x28 08 00 05 7b e6 00 00 10 00 Mar 4 15:05:45 pervalidus kernel: hdc: irq timeout: status=0xd0 { Busy } Mar 4 15:05:45 pervalidus kernel: hdc: ATAPI reset complete Mar 4 15:06:45 pervalidus kernel: scsi : aborting command due to timeout : pid 4589, scsi0, channel 0, id 0, lun 0 0xbe 00 00 05 7b e6 00 00 10 10 00 00 ... -- 0@pervalidus.{tk, dyndns.org}