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Re: dvd burning problem, dvd+rw-tools, LG GSA-4120B

This particular kernel from gentoo has the following patch applied, so the
whole fuss about 2.6.8-scsi-whatever-dvdwriting-"bug"(*) should not be a
problem(?):
This problem should have manifested itself prior such write failure, so that yes, it's most likely something else. 


# growisofs -dvd-compat -Z /dev/hdc=/tmp/tj1-60.iso
Executing 'builtin_dd if=/tmp/tj1-60.iso of=/dev/hdc obs=32k seek=0'
/dev/hdc: "Current Write Speed" is 8.2x1385KBps.
         0/4679391232 ( 0.0%) @0x, remaining ??:??
         0/4679391232 ( 0.0%) @0x, remaining ??:??
:-[ WRITE@LBA=10h failed with SK=3h/ASC=0Ch/ACQ=00h]: Input/output error
:-( write failed: Input/output error
/dev/hdc: flushing cache
/dev/hdc: updating RMA
/dev/hdc: closing disc
/dev/hdc: reloading tray

And after I close the tray:

# dvd+rw-mediainfo /dev/hdc
INQUIRY:                [HL-DT-ST][DVDRAM GSA-4120B][A102]
GET [CURRENT] CONFIGURATION:
 Mounted Media:         11h, DVD-R Sequential
 Media ID:              CMC MAG. AE1
GET [CURRENT] PERFORMANCE:
 Write Performance:     6.0x1385=8310KB/s@[0 -> 227567]
                        8.0x1385=11080KB/s@[227568 -> 2298495]
 Speed Descriptor#0:    02/2298495 R@4.1x1385=5730KB/s W@8.0x1385=11080KB/s
 Speed Descriptor#1:    02/2298495 R@4.1x1385=5730KB/s W@4.0x1385=5540KB/s
READ DISC INFORMATION:
 Disc status:           blank
 Number of Sessions:    1
 State of Last Session: empty
 Number of Tracks:      1
READ TRACK INFORMATION[#1]:
 Track State:           invisible incremental
 Track Start Address:   0*2KB
 Next Writable Address: 0*2KB
In DVD+R case the last line would mean that it's OK to write. What happens if you try to re-run growisofs? Does it fail in the very same or some other way? 


What could be the problem? Any ideas?
Try another media brand. Also try to lower the recording speed. Being rather bizarre, the problem smells poor firmware media support for particular brand or media product. A.
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