[LAU] CD ROM Problem

Hope someone can help me on this. I've got 2 LD DVD r/w drives. Neither one will burn an audio CD for me. When I try it gets to around track 8 to 10 of 22 and then it craps out. Tried a bunch of different media and have a nice stack of coasters! Attempt to create using wodim/cdrecord: cdrecord dev=/dev/cdrom speed=4 -audio *wav wodim: No write mode specified. wodim: Assuming -tao mode. wodim: Future versions of wodim may have different drive dependent defaults. Device type : Removable CD-ROM Version : 5 Response Format: 2 Capabilities : Vendor_info : 'HL-DT-ST' Identification : 'DVDRAM GH22NS50 ' Revision : 'TN02' Device seems to be: Generic mmc2 DVD-R/DVD-RW. Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Speed set to 2822 KB/s Starting to write CD/DVD at speed 16.0 in real TAO mode for single session. Last chance to quit, starting real write in 0 seconds. Operation starts. Track 01: Total bytes read/written: 43551984/43551984 (18517 sectors). Track 02: Total bytes read/written: 36408960/36408960 (15480 sectors). Track 03: Total bytes read/written: 29230656/29230656 (12428 sectors). Track 04: Total bytes read/written: 39424224/39424224 (16762 sectors). Track 05: Total bytes read/written: 17870496/17870496 (7598 sectors). Track 06: Total bytes read/written: 23806944/23806944 (10122 sectors). Track 07: Total bytes read/written: 32775120/32775120 (13935 sectors). Track 08: Total bytes read/written: 18616080/18616080 (7915 sectors). Errno: 5 (Input/output error), write_g1 scsi sendcmd: no error CDB: 2A 00 00 01 D9 54 00 00 15 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 72 0B 00 00 00 00 00 0E 09 0C 00 00 00 03 00 00 Sense Key: 0x0 No Additional Sense, Segment 11 Sense Code: 0x00 Qual 0x03 (setmark detected) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 41.296s timeout 40s write track data: error after 40452048 bytes wodim: A write error occured. wodim: Please properly read the error message above. The drives in question are (from hdparm): /dev/cdrom: ATAPI CD-ROM, with removable media Model Number: HL-DT-ST DVDRAM GH22NS50 Serial Number: K00998K1011 Firmware Revision: TN02 Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6 Standards: Likely used CD-ROM ATAPI-1 Configuration: DRQ response: 50us. Packet size: 12 bytes cache/buffer size = unknown Capabilities: LBA, IORDY(can be disabled) DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns And for the other drive: /dev/cdrom1: ATAPI CD-ROM, with removable media Model Number: HL-DT-ST DVDRAM GH24NS50 Serial Number: K00AB5E3326 Firmware Revision: XP02 Transport: Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6 Standards: Likely used CD-ROM ATAPI-1 Configuration: DRQ response: 50us. Packet size: 12 bytes cache/buffer size = unknown Capabilities: LBA, IORDY(can be disabled) DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 *udma5 Cycle time: min=120ns recommended=120ns PIO: pio0 pio1 pio2 pio3 pio4 Cycle time: no flow control=120ns IORDY flow control=120ns And my linux is Ubuntu 11.04, kernel 2.6.38-11-generic-pae I've checked my cables and all seems to be fine. I don't think it's a simple hardware thing ... my guess is something to do with irqs. This is a lightly loaded system. Lots of RAM (7gig) and a dual core AMD processor. Suggestions welcome. -- **** Listen to my CD at http://www.mellowood.ca/music/cedars **** Bob van der Poel ** Wynndel, British Columbia, CANADA ** EMAIL: bob(a)mellowood.ca WWW:   http://www.mellowood.ca