Dear all,<br><br>I have one interesting problem with my Sony DVD RW Drive (AW-G170A). After writing one CD using the drive, the drive refuses to write DVDs. Before writing the CD, I was able to write to DVDs without any problem. In fact, I have written around 30-40 DVDs using the drive successfully. Few days ago, I wrote one CD using the drive. The CD was written successfully. But, yesterday, when I tried to DVDs, using the following commands -<br>------------------<br>1. 'genisoimage -print-size -q -R temp3/' to get the track size followed by<br>2. 'genisoimage -R temp3/ | wodim -v -speed=4 dev=/dev/dvd tsize=176s -' where 176 was the output of previous command.<br>------------------<br>'wodim' fails with the following set of messages -<br>------------------<br>wodim: No write mode specified.<br>wodim: Asuming -tao mode.<br>wodim: Future versions of wodim may have different drive dependent defaults.<br>TOC Type: 1 = CD-ROM<br>wodim: Operation not permitted. Warning:
Cannot raise RLIMIT_MEMLOCK limits.I: -input-charset not specified, using utf-8 (detected in locale settings)<br>Total translation table size: 0<br>Total rockridge attributes bytes: 490<br>Total directory bytes: 622<br>Path table size(bytes): 10<br>scsidev: '/dev/dvd'<br>devname: '/dev/dvd'<br>scsibus: -2 target: -2 lun: -2<br>Linux sg driver version: 3.5.27<br>Wodim version: 1.1.6<br>SCSI buffer size: 64512<br>Device type : Removable CD-ROM<br>Version : 5<br>Response Format: 2<br>Capabilities :<br>Vendor_info : 'SONY '<br>Identification : 'DVD RW AW-G170A '<br>Revision : '1.62'<br>Device seems to be: Generic mmc2 DVD-R/DVD-RW.<br>Current: 0x0011 (DVD-R sequential recording)<br>Profile: 0x002B (DVD+R/DL)<br>Profile: 0x001B (DVD+R)<br>Profile: 0x001A (DVD+RW)<br>Profile: 0x0016 (DVD-R/DL layer jump recording)<br>Profile: 0x0015
(DVD-R/DL sequential recording)<br>Profile: 0x0014 (DVD-RW sequential recording)<br>Profile: 0x0013 (DVD-RW restricted overwrite)<br>Profile: 0x0012 (DVD-RAM)<br>Profile: 0x0011 (DVD-R sequential recording) (current)<br>Profile: 0x0010 (DVD-ROM)<br>Profile: 0x000A (CD-RW)<br>Profile: 0x0009 (CD-R)<br>Profile: 0x0008 (CD-ROM)<br>Profile: 0x0002 (Removable disk)<br>Using generic SCSI-3/mmc DVD-R(W) driver (mmc_mdvd).<br>Driver flags : SWABAUDIO BURNFREE<br>Supported modes: PACKET SAO<br>Drive buf size : 1015808 = 992 KB<br>Beginning DMA speed test. Set CDR_NODMATEST environment variable if device<br>communication breaks or freezes immediately after that.<br>FIFO size : 4194304 = 4096 KB<br>Track 01: data 0 MB padsize: 248 KB<br>Total size: 0 MB (00:04.00) = 300 sectors<br>Lout
start: 1 MB (00:06/00) = 300 sectors<br>Current Secsize: 2048<br>HINT: use dvd+rw-mediainfo from dvd+rw-tools for information extraction.<br>Blocks total: 2298496 Blocks current: 2298496 Blocks remaining: 2298196<br>Max brk space used 0<br>176 extents written (0 MB)<br>wodim: Warning: controller returns zero sized Ricoh Vendor Page page.<br>wodim: Warning: controller returns wrong page 0 for Ricoh Vendor Page page (30).<br>Speed set to 5540 KB/s<br><br>WARNING: found a microscopic small track size (360448 bytes).<br> Do you really want to write this image? Press Ctrl-C to abort...<br><br>Starting to write CD/DVD at speed 4.0 in real unknown mode for single session.<br>Last chance to quit, starting real write in 0 seconds. Operation starts.<br>Waiting for reader process to fill input buffer ... input buffer ready.<br>wodim: Warning: controller returns zero
sized Ricoh Vendor Page page.<br>wodim: Warning: controller returns wrong page 0 for Ricoh Vendor Page page (30).<br>Performing OPC...<br>Errno: 5 (Input/output error), send opc scsi sendcmd: no error<br>CDB: 54 01 00 00 00 00 00 00 00 00<br>status: 0x2 (CHECK CONDITION)<br>Sense Bytes: 72 0B 00 00 00 00 00 0E 09 0C 00 00 00 02 00 00<br>Sense Key: 0x0 No Additional Sense, Segment 11<br>Sense Code: 0x00 Qual 0x02 (end-of-partition/medium detected) Fru 0x0<br>Sense flags: Blk 0 (not valid)<br>cmd finished after 71.590s timeout 60s<br>wodim: OPC failed.<br>Writing time: 96.485s<br>wodim: fifo had 6 puts and 0 gets.<br>wodim: fifo was 0 times empty and 0 times full, min fill was 100%.<br>------------------<br><br>As far as I could understand the error, it is a 'power caliberation error'. <br><br>Interestingly enough, the same thing happened with my previous DVD drive which was a 'SONY DVD RW DRU-170C' after I wrote one CD with it using
'wodim'.<br><br>Could somebody shed some light on this problem please.<br><br>With Regards,<br>Prasad H. L.<br><BR><BR>---<br>Prasad H. L.<br>Project Associate (with Dr. Shalabh Bhatnagar),<br>Department of Computer Science and Automation,<br>Indian Institute of Science,<br>Bangalore - 560012<p> 
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