My GSA-4040B burner (+,-,RAM) is a little over a month old. I had finally found a media code (RITEKG04) that it recognized as 4x DVD-R, and had burned many such. But two days ago...
After one successful burn that day, the next one failed. Then the next one, and the next one. I went into simulation mode, and got this log from Nero Express 6.0.0.19:
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5:37:44 AM #18 Phase 32 File dlgbrnst.cpp, Line 1843
Simulation started at 4x (5,520 KB/s)
5:37:44 AM #19 Text 0 File ThreadedTransferInterface.cpp, Line 2136
Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0
5:37:44 AM #20 Text 0 File dlgbrnst.cpp, Line 1703
Set remaining time: 3:56,514 (236514ms) -> OK
5:37:44 AM #21 Text 0 File DVDR.cpp, Line 1457
Recording mode: Sequential Recording Mode
5:37:44 AM #22 Text 0 File Mmc.cpp, Line 19195
Set BUFE: supported -> ON
5:37:44 AM #23 Text 0 File DVDR.cpp, Line 1572
Start write address at LBA 0
DVD high compatibility mode: Yes
5:37:44 AM #24 Text 0 File Cdrdrv.cpp, Line 7912
---- DVD Structure: Physical Format Information (00h) ----
Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050
Book Type: DVD-R (2), Part Version: 5
Disc Size: 120 mm, Maximum Rate: <not specified> (F h)
Number of Layers: 1, Track Path: Parallel Track Path (PTP), Layer Type: recordable
Linear Density: 0,267 um/bit, Track Density: 0,74 um/track
Starting Physical Sector Number of Data Area: 30000 h (DVD-ROM, DVD-R/-RW, DVD+R/+RW)
End Physical Sector Number of Data Area: 26127F h
End Sector Number in Layer 0: 0 h
Data in Burst Cutting Area (BCA) does not exist
Media Specific:
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
02 FE 10 00 02 FF A0 00 - 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................
5:37:46 AM #25 Text 0 File Writer.cpp, Line 318
05:37:46.734 - HL-DT-ST DVDRAM GSA-4040B : Queue again later (Intervall : 11msec)
5:37:57 AM #26 SCSI -1093 File Cdrdrv.cpp, Line 1413
SCSI Exec, HA 1, TA 1, LUN 0, buffer 0x04180000
Status: 0x04 (0x01, SCSI_ERR)
HA-Status 0x00 (0x00, OK)
TA-Status 0x02 (0x01, SCSI_TASTATUS_CHKCOND)
Sense Key: 0x03 (KEY_MEDIUM_ERROR)
Sense Code: 0x02
Sense Qual: 0x00
CDB Data: 0x2A 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x20 0x00 0x00 0x00
Sense Data: 0x71 0x00 0x03 0x00 0x00 0x00 0x00 0x10
0x30 0x3C 0x00 0x0C 0x02 0x00
5:37:57 AM #27 CDR -1093 File Writer.cpp, Line 335
No seek complete
5:37:57 AM #28 Text 0 File ThreadedTransfer.cpp, Line 228
all writers idle, stopping conversion
5:37:57 AM #29 Text 0 File ThreadedTransfer.cpp, Line 222
conversion idle, stopping reader
5:37:57 AM #30 Text 0 File dlgbrnst.cpp, Line 1703
Set remaining time: 0:00,000 (0ms) -> OK
5:37:57 AM #31 Text 0 File dlgbrnst.cpp, Line 1703
Set remaining time: 0:00,000 (0ms) -> OK
5:37:57 AM #32 Phase 34 File dlgbrnst.cpp, Line 1843
Simulation failed at 4x (5,520 KB/s)
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Simulation, and burning, at 2x appears to work properly. Similarly, Easy CD Creator 5.3.5.10 in 4x test mode says:
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E8004187b: Disc error - corrupted format - [05/30/05]
E80041925: TrackWriter error - Command retry failed - [T7118]
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Once again I emphasize that 2x DVD-R burning continues to work properly, as does 4x DVD+R burning, 2.4x DVD+RW writing, 1x DVD-RW writing (I don't have any 2x DVD-RW disks), and DVD-RAM writing.
These same errors occur on all my remaining DVD-R blanks (all RITEKG04, marked for 4x). Trying another brand would almost certainly be useless, and certainly expensive, since I have already seen that RITEKG04 is the only (easily available and inexpensive) media code that reliably burns at 4x on the 4040B drive; and besides, I find it hard to believe that the quality of the RITEKG04 blanks would change drastically in the middle of a 25-pack spindle.
What could cause 4x to suddenly start failing (but with 2x still succeeding) without any other system changes? Does anyone have suggestions to try, or should I just contact LG for an RMA number?