Plextor 712A cannot rewrite DVD-RW
I have a Plextor PX-712A DVD/RW drive, which writes CDRs and (re)writes CDRWs fine
with cdrecord, and also writes DVD+R(W) and DVD-R(W) with growisofs. But it will
not re-write DVD-RW with growisofs. Take an ordinary disc that has been written to
as follows:
growisofs -dvd-compat -Z /dev/dvd=image.iso
I can't blank it or force a new format on it no matter what I try; dvd+rw-format
gives me the following errors:
user@computer$ dvd+rw-format -force /dev/dvd
* DVD±RW/-RAM format utility by <appro@fy.chalmers.se>, version 4.10.
* 4.7GB DVD-RW media in Sequential mode detected.
* formatting /:-[ PERFORM OPC failed with SK=5h/ASC=27h/ACQ=00h]: Input/output error
user@computer$ dvd+rw-format -blank=full /dev/dvd
* DVD±RW/-RAM format utility by <appro@fy.chalmers.se>, version 4.10.
* 4.7GB DVD-RW media in Sequential mode detected.
* blanking /:-[ PERFORM OPC failed with SK=5h/ASC=27h/ACQ=00h]: Input/output error
I get the same errors whether I run the command as root or an ordinary user, whether
the "full" option is added or not, on DVD-RW discs from different manufacturers. Ditto
for just re-running the growisofs command above with a new image.iso.
The "input/output error" made me suspicious, so I ran dvd+rw-mediainfo:
user@computer$ dvd+rw-mediainfo /dev/dvd
INQUIRY: [PLEXTOR ][DVDR PX-712A ][1.04]
GET [CURRENT] CONFIGURATION:
Mounted Media: 14h, DVD-RW Sequential
Current Write Speed: 1.0x1385=1385KB/s
Write Speed #0: 1.0x1385=1385KB/s
GET [CURRENT] PERFORMANCE:
Write Performance: 1.0x1385=1385KB/s@[0 -> 2294911]
Speed Descriptor#0: 03/1922435 R@12.0x1385=16620KB/s W@1.0x1385=1385KB/s
READ DVD STRUCTURE[#10h]:
Media Book Type: 32h, DVD-RW book [revision 2]
Legacy lead-out at: 2298496*2KB=4707319808
READ DVD STRUCTURE[#0h]:
Media Book Type: 32h, DVD-RW book [revision 2]
Last border-out at: 1922436*2KB=3937148928
READ DISC INFORMATION:
Disc status: complete
Number of Sessions: 1
State of Last Session: complete
Number of Tracks: 1
READ TRACK INFORMATION[#1]:
Track State: complete
Track Start Address: 0*2KB
Free Blocks: 0*2KB
Track Size: 1922436*2KB
Last Recorded Address: 1922435*2KB
FABRICATED TOC:
Track#1 : 14@0
Track#AA : 14@1922436
Multi-session Info: #1@0
READ CAPACITY: 1922436*2048=3937148928
I notice that the INQUIRY lists the drive as DVDR, not DVDRW, but I don't know if
that's the problem -- or if it is, how to change it. DMA is turned on for the drive
and the permissions should be fine (/dev/dvd --> /dev/hdc):
brw-rw-rw- 1 root cdrom 22, 0 2004-07-22 15:54 /dev/hdc
What gives? Google turned up nothing, and I'm more or less at a loss at this point.
dvd+rw-tools: 4.10
growisofs: 5.21
Debian GNU/Linux running Sarge: Kernel 2.6.8, as patched by Debian, using ide_cd (hence
ATAPI rather than SCSI emulation).
Any help would be appreciated!
--
Peter King peter.king@utoronto.ca
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