Hello, I have an LG H54N DVD R/W I have burned a ton of disks with no problem but lately I am encountering a series of 5 or 6 bad burns where the diks is only burned 30% to 50% or less and then the software crashes. This happens regardless of recording speed and media. I was unable to complete a burn of an iso file with Nero but it burned successfully with PowerIso. Here is a section of one of my logs where the trouble started: [21:15:12] DVDEngine END: VTSTT_VOBS#1 - Write [21:35:01] NeroVision Device not available [21:35:01] NeroVision D: HL-DT-ST DVD-RAM GSA-H54N [21:35:01] NeroVision Reset occurred [21:35:01] NeroVision D: HL-DT-ST DVD-RAM GSA-H54N [21:35:01] NeroVision Could not perform end of Disc-at-once [21:35:02] NeroVision Burn process failed at 18x (24,930 KB/s) The above was for Nero 7. I am currently using Nero 8. I would like to be able to rule out the problem as being hardware related. Any help would be much appreciated.
I forgot to mention that there has been an audio playback problem with dvd's played over this drive. There is a lot of distortion and crackling although the video is good. Those cleaning disks do not help with this issue. Perhaps this is because there is no audio wire connected to the drive. I am currently using the integrated audio function on the motherboard.
When you haven’t got an audio lead in the back of your drive it plays the sound down the ide ribbon cable that’s why it’s probably distorted are you burning DVD’s? If yes burning at 18x speed is asking for trouble didn’t even know 18x speed disks were available to buy,post a full Nero log so we can get a better understanding of what’s going on
Also it’s no good posting a Nero 7 log if you’re using Nero 8 post the log for the project that it applies too.
Thanks for the reply. The 18X got set by mistake that time. I assumed at first that this was the reason for the fail too. The only reason I sent that log is that it was the only one I could find and I assumed similar problems were reported on the other failed burns. The same thing was happening at speeds down to 4X. I have a second external burner that I intend to try using the Nero 8 tonight. If it fails, I will try to remember to save the log this time. If it succeeds I need to recheck the cable connection to the internal drive and make sure they are seated firmly. I have been stuffing and securing PS cables near this bay so I could easily have dislodged the connectors. Being that decoding and burning those large files spoils the better part of 2 hours I will start the burn with the external drive overnight tonight.
I know you’ve said it happens on different brands of media but what brands have you tried? if you’ve been using no frills unbranded etc media in the past and its worked you could have just been lucky like I said when you do get a Nero log can help some more might be worth giving image burn a try see if that solves the problem then we can rule out the drive/disk’s etc also check and see if there is a firmware update for your drive
Thanks for your continued support. I happened to have some time away from the computer today so I was able to do the burns. I burned the disk successfully using Nero 8 and my external DVD RW. Afterwards I removed the stuffed in PS cables from on top of the internal DVD burner (this was restricting ventilation). I then removed and reinserted the cables (they appeared to be fully inserted though) and mounted an 80 mm fan on top of the burner. I already had one blowing air on the hard drive below it which supposedly was exhausting some heat from the burner above it as well. I burned a movie to a DVD using the internal drive this time and the burn did complete successfully - first time in 5 tries. One thing that was different this time is that the only burn speed avaiable to choose from was 4X. Could it be that Nero remembered the previous failed burns and adjusted downward? Another thing different this time is that I could actually smell an odor of burned plastic as the disk was burning. Hopefully in the future higher write speeds will become available again. If you would like to make some closing comments please do so. All the best.
If its working now after you’ve tided up the cables etc in your pc looks like it was an overheating issue don’t understand why you need a fan above your burner if your computer is getting that hot I’d say you need to have a good look at it and find out why its getting so hot have you got your fans blowing the correct way sounds daft I know but its easy done the fans should be blowing in from the front down from the top and drawing out at the back check the direction on them has been known too stick them in the wrong way round there is an arrow on the fan check its direction also cable ties and electrical tape is idea for tiding up all your cables my computer has 4 hardrives 3 optical drives and I’ve only got 1 120mm fan at the back drawing heat out and have no problems
And also no you shouldn’t be smelling burned plastic until you sort this out don’t leave the computer unattended incase in brings you house down if it catches fire Quote Another thing different this time is that I could actually smell an odor of burned plastic as the disk was burning.
Well, I tried to burn a data dvd today and it got nearly finished when it errored out again. This time I had the choice of speeds up to 16X (possibly 18X I'm not sure). Anyway, I chose 16X because that is the speed that I have had 100% success with in the past for hundreds of burns. I don't know if it would have worked at 4X or not. I will try again at 4X tonight and see what happens. One other oddity: I was trying to burn a game. One of the files was a URL with a .htm extension. Nero did not "want" to add this file so I dragged and dropped it to the list manually and it showed up in the file list with no extension showing - just URL. I don't know if trying to copy this one file would have caused the error in the burn. Anuway, the end of the log is similar to the one I sent you originally. I don't know how to add an attachment here. I will simply copy and paste the contents of the full log. I don't know how it will format here: .............................................. 7K22-0018-1105-E155-59M4-84X3-**** EC06-206A-99K5-2527-940M-3227-**** 9C00-E0A2-98K1-294K-06XC-MX2C-**** 4C04-5032-9953-2A16-09E3-KC8M-**** EC05-E087-9964-2703-05E2-88XA-**** 5C0X-205M-99M1-2435-2118-K246-**** 4C0E-4009-9863-2X6M-1939-12A1-**** Windows XP 5.1 IA32 WinAspi: - NT-SPTI used Nero Version: 8.3.2.1 Internal Version: 8, 3, 2, 1 (Nero Express) Recorder: <HL-DT-ST DVD-RAM GSA-H54N>Version: 1.00 - HA 1 TA 0 - 8.3.2.1 Adapter driver: <IDE> HA 1 Drive buffer : 2048kB Bus Type : default CD-ROM: <HL-DT-ST DVD-RAM GSA-H54N>Version: 1.00 - HA 1 TA 0 - 8.3.2.1 Adapter driver: <IDE> HA 1 === Scsi-Device-Map === CdRomPeripheral : HL-DT-ST DVD-RAM GSA-H54N atapi Port 1 ID 0 DMA: Off DiskPeripheral : WDC WD800JB-00ETA0 atapi Port 1 ID 1 DMA: On DiskPeripheral : WDC WD3200AAKS-00B3A0 atapi Port 2 ID 0 DMA: On DiskPeripheral : WDC WD3200AAKS-75SBA0 atapi Port 4 ID 0 DMA: On === CDRom-Device-Map === HL-DT-ST DVD-RAM GSA-H54N D: CdRom0 ======================= AutoRun : 1 Excluded drive IDs: WriteBufferSize: 83886080 (0) Byte BUFE : 0 Physical memory : 2047MB (2097151kB) Free physical memory: 2047MB (2097151kB) Memory in use : 24 % Uncached PFiles: 0x0 Use Inquiry : 1 Global Bus Type: default (0) Check supported media : Disabled (0) 29.6.2008 ISO compilation 17:52 #1 Text 0 File SCSIPTICommands.cpp, Line 450 LockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL 17:52 #2 Text 0 File Isodoc.cpp, Line 6713 Iso document burn settings ------------------------------------------ Determine maximum speed : FALSE Simulate : FALSE Write : TRUE Finalize CD : FALSE Multisession : TRUE Multisession type: : Start multisession Burning mode : DAO Mode : 1 ISO Level : 1 (Max. of 11 = 8 + 3 char) Character set : ISO 9660 Joliet : TRUE Allow pathdepth more than 8 directories : TRUE Allow more than 255 characters in path : TRUE Write ISO9660 ;1 file extensions : TRUE 17:52 #3 ISO9660GEN -11 File Geniso.cpp, Line 3349 First writeable address = 0 (0x00000000) 17:52 #4 Text 0 File Burncd.cpp, Line 3568 Turn on Disc-At-Once, using DVD media 17:52 #5 Text 0 File FilesystemSettingsValidator.cpp, Line 142 FS Settings: using validator 'CUDFSettingsValidatorDVD' ParamMode = 'automatic', changing UDF partition type from 'physical' to 'physical' Changing UDF revision from '1.02' to '1.02' 17:52 #6 Text 0 File DlgWaitCD.cpp, Line 311 Last possible write address on media: 2297887 (510:38.37, 4488MB) Last address to be written: 1318671 (293:02.21, 2575MB) 17:52 #7 Text 0 File DlgWaitCD.cpp, Line 323 Write in overburning mode: NO (enabled: CD) 17:52 #8 Text 0 File DlgWaitCD.cpp, Line 2932 Recorder: HL-DT-ST DVD-RAM GSA-H54N, Media type: DVD-R Disc Manufacturer ID: <CMC MA> <G. AM3> Disc Application Code: 64, Disc Physical Code: 193 17:52 #9 Text 0 File DlgWaitCD.cpp, Line 497 >>> Protocol of DlgWaitCD activities: <<< ========================================= 17:52 #10 Text 0 File ThreadedTransferInterface.cpp, Line 754 Setup items (after recorder preparation) 0: TRM_DATA_MODE1 () 2 indices, index0 (150) not provided original disc pos #0 + 1318672 (1318672) = #1318672/293:2.22 relocatable, disc pos for caching/writing not required/ required -> TRM_DATA_MODE1, 2048, config 0, wanted index0 0 blocks, length 1318672 blocks [D: HL-DT-ST DVD-RAM GSA-H54N] -------------------------------------------------------------- 17:52 #11 Text 0 File ThreadedTransferInterface.cpp, Line 956 Prepare [D: HL-DT-ST DVD-RAM GSA-H54N] for write in CUE-sheet-DAO DAO infos: ========== MCN: "" TOCType: 0x00; Session Closed, disc not fixated Tracks 1 to 1: Idx 0 Idx 1 Next Trk 1: TRM_DATA_MODE1, 2048/0x00, FilePos 0 0 2700640256, ISRC "" DAO layout: =========== ___Start_|____Track_|_Idx_|_CtrlAdr_|_____Size_|______NWA_|_RecDep__________ 0 | lead-in | 0 | 0x41 | 0 | 0 | 0x00 0 | 1 | 0 | 0x41 | 0 | 0 | 0x00 0 | 1 | 1 | 0x41 | 1318672 | 0 | 0x00 1318672 | lead-out | 1 | 0x41 | 0 | 0 | 0x00 17:52 #12 Text 0 File SCSIPTICommands.cpp, Line 240 SPTILockVolume - completed successfully for FSCTL_LOCK_VOLUME 17:52 #13 Text 0 File Burncd.cpp, Line 4359 Caching options: cache CDRom or Network-Yes, small files-No (<64KB) 17:52 #14 Phase 24 File dlgbrnst.cpp, Line 1767 Caching of files started 17:52 #15 Text 0 File Burncd.cpp, Line 4481 Cache writing successful. 17:52 #16 Phase 25 File dlgbrnst.cpp, Line 1767 Caching of files completed 17:52 #17 Phase 36 File dlgbrnst.cpp, Line 1767 Burn process started at 16x (22,160 KB/s) 17:52 #18 Text 0 File ThreadedTransferInterface.cpp, Line 2673 Verifying disc position of item 0 (relocatable, disc pos, no patch infos, orig at #0): write at #0 17:52 #19 Text 0 File DVDR.cpp, Line 3280 Recording mode: Sequential Recording Mode for Multisession 17:52 #20 Text 0 File DVDR.cpp, Line 3434 Start write address at LBA 0 DVD high compatibility mode: Yes 17:52 #21 SPTI -1066 File SCSIPassThrough.cpp, Line 196 CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1066) CDB Data: 0xAC 00 00 00 00 00 00 00 00 64 00 00 Sense Key: 0x05 (KEY_ILLEGAL_REQUEST) Sense Code: 0x24 Sense Qual: 0x00 Sense Area: 0x70 00 05 00 00 00 00 0E 00 00 00 00 24 Buffer x0c843000: Len x648 17:52 #22 Text 0 File Cdrdrv.cpp, Line 10164 ---- Disc Structure: Physical Format Information (00h) ---- Media Type: 0, Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050 Book Type: DVD-R (2), Part Version: 2.0x (5), Extended Part Version: 2.1 (33) Disc Size: 120 mm, Maximum Transfer 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) Outer Limit of Data Recordable Area: 26127F h Data in Burst Cutting Area (BCA) does not exist Revision number of maximum recording speed: 6.0 Revision number of minimum recording speed: - Revision number table of recording speed: 1.0 2.0 3.0 4.0 5.0 - - Class: 0, Extended part version: 33 Start PSN of the Extra Border Zone: 2FE10 h Start PSN of Physical format information blocks in Extra Border Zone: 2FFA0 h Media Specific [16..783]: 00 60 00 10 20 30 40 50 - 00 00 00 21 00 00 00 00 .`...0@P...!.... 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 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 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 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 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 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 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 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 ................ 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 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 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 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 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 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 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 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 - 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 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 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................ 1D 00 00 00 00 00 00 00 - 00 00 00 00 00 00 00 00 ................ 01 40 C1 FD 9E D8 52 00 - 02 84 0D 12 98 99 90 00 .@....R......... 03 43 4D 43 20 4D 41 00 - 04 47 2E 20 41 4D 33 00 .CMC.MA..G..AM3. 05 88 80 00 00 00 02 00 - 06 09 0D 14 98 88 90 00 ................ 07 88 80 00 00 00 00 00 - 08 07 17 0A 0E 09 04 00 ................ 09 95 07 0D 0B 88 88 00 - 0A 80 00 00 00 00 10 00 ................ 0B 06 17 15 B8 99 85 00 - 0C B8 9A 32 03 20 32 00 ...........2..2. 0D 00 00 D0 00 00 00 00 - 0E 09 1F 39 2F 25 1C 00 ...........9/%.. 0F 50 19 29 19 89 B5 00 - 10 88 84 00 04 00 04 00 .P.)............ 11 00 00 00 00 00 00 00 - 12 09 2B 37 2D 29 1B 00 ..........+7-).. 13 50 1D 2D 1F A6 B5 00 - 14 88 80 00 00 00 00 00 .P.-............ 15 00 00 00 00 00 00 00 - 16 0B 45 3D 3B 1F 25 00 ..........E=;.%. 17 30 25 31 0D 8A B5 00 - 18 88 80 00 00 00 00 00 .0%1............ 19 00 00 00 00 00 00 00 - 1A 0C 51 51 51 45 2D 00 ..........QQQE-. 1B 90 23 2D 19 79 B5 00 - 1C 88 80 00 00 00 00 00 ..#-.y.......... 1D 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 00 00 00 00 00 00 ................ 17:52 #23 Text 0 File DVDR.cpp, Line 3572 Reserved Track size: 1318672 (141F10h, 2575MB) -> return code 0 17:52 #24 Text 0 File ThreadedTransfer.cpp, Line 269 Pipe memory size 83836800 18:21 #25 SPTI -600 File SCSIPassThrough.cpp, Line 196 CdRom0: SCSIStatus(x00) WinError(121) NeroError(-600) CDB Data: 0x2A 00 00 0A 0F E0 00 00 20 00 00 00 Sense Key: 0x00 (KEY_NO_SENSE) Sense Code: 0x00 Sense Qual: 0x00 Sense Area: 0x00 00 00 00 00 00 00 00 00 00 00 00 00 Buffer x19aa2800: Len x10000 0xC3 C1 3E 80 D8 E5 3E 00 4F E2 BE FD FC 7C 3E 9E 0xC3 C1 3E 80 6C E6 3E 00 8E E3 BE 00 00 00 00 9E 0xC3 C1 3E 00 71 E4 3E 00 CC E4 BE 00 00 00 00 00 18:21 #26 CDR -600 File Writer.cpp, Line 306 Device not available D: HL-DT-ST DVD-RAM GSA-H54N 18:21 #27 Phase 133 File dlgbrnst.cpp, Line 1767 Writing short lead-out 18:21 #28 SPTI -1176 File SCSIPassThrough.cpp, Line 196 CdRom0: SCSIStatus(x02) WinError(0) NeroError(-1176) CDB Data: 0x5B 01 02 00 00 03 00 00 00 00 00 00 Sense Key: 0x05 (KEY_ILLEGAL_REQUEST) Sense Code: 0x72 Sense Qual: 0x04 Sense Area: 0x70 00 05 00 00 00 00 0E 00 00 00 00 72 04 18:21 #29 Text 0 File DVDR.cpp, Line 3840 EndDAO: Last written address was 659423 (A0FDFh)Close Session/Border, function 2, track: 3, finalize disc: NO, ret: -1176 18:21 #30 CDR -1114 File WriterStatus.cpp, Line 292 Reset occurred D: HL-DT-ST DVD-RAM GSA-H54N 18:21 #31 TRANSFER -24 File WriterStatus.cpp, Line 292 Could not perform end of Disc-at-once 18:21 #32 Phase 38 File dlgbrnst.cpp, Line 1767 Burn process failed at 16x (22,160 KB/s) 18:21 #33 Text 0 File SCSIPTICommands.cpp, Line 287 SPTIDismountVolume - completed successfully for FSCTL_DISMOUNT_VOLUME 18:21 #34 Text 0 File Cdrdrv.cpp, Line 11420 DriveLocker: UnLockVolume completed 18:21 #35 Text 0 File SCSIPTICommands.cpp, Line 450 UnLockMCN - completed sucessfully for IOCTL_STORAGE_MCN_CONTROL Existing drivers: Registry Keys: HKLM\Software\Microsoft\Windows NT\CurrentVersion\WinLogon\AllocateCDROMs : 0 (Security Option)
About the burnt plastic odor: I'm thinking now the smell I was getting was from a recharging electric drill battery that was on the floor a few feet away. In any case I did not notice the odor today. Thank you for your concern. In previous cases smells like this culminated in dead power supplies, but so far so good.
I repeated the burn at 4X with the objectionable file removed and the burn completed and verified successfully. The odd thing was that the speed of the burn did not seem appreciably different (approx 1 hr for 1.5 gb of data) at 4X than it was for the almost completed burn of the same file at 16X.
I know my cpu temp is within normal limits and my mobo and drives are all under 35C most of the time. The ide drive next to the burner did get over 45C probably due to the fact that the dominant air flow is in at the lower front and out at the lower back as you say and did not pass over this drive at all as I was forced to put it in an upper 5.25" bay due to the fact that it would cut off the air supply from the lower front fan of I had 3 drives together in front of the single 80mm fan. The fan above my dvd burner at the moment may or may not be of any benefit. I have no way of knowing as it has no temperature sensor. My gut feeling is that the laser in the DVD is dirty or, more likely, wearing out. Is this the sort of thin that happens when DVD burners wear out?
First thing first dma is off on your drive go into device manager and put on uninstalling the drive and restarting the computer usually resets it that’s if you don’t know how to do it === Scsi-Device-Map === CdRomPeripheral : HL-DT-ST DVD-RAM GSA-H54N atapi Port 1 ID 0 DMA: Off Also is that log for burning a DVD-r or a cdr? If its dv-r these disk’s aren’t reliable 03 43 4D 43 20 4D 41 00 - 04 47 2E 20 41 4D 33 00 .CMC.MA..G..AM3.
Also it says here max recording speed is 6x? 17:52 #22 Text 0 File Cdrdrv.cpp, Line 10164 ---- Disc Structure: Physical Format Information (00h) ---- Media Type: 0, Layer: 0, Address: 0 (0 h), AGID: 0; Length: 2050 Book Type: DVD-R (2), Part Version: 2.0x (5), Extended Part Version: 2.1 (33) Disc Size: 120 mm, Maximum Transfer 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) Outer Limit of Data Recordable Area: 26127F h Data in Burst Cutting Area (BCA) does not exist Revision number of maximum recording speed: 6.0 Says 6x ? Revision number of minimum recording speed: - Revision number table of recording speed: 1.0 2.0 3.0 4.0 5.0 - - Class: 0, Extended part version: 33 Start PSN of the Extra Border Zone: 2FE10 h Start PSN of Physical format information blocks in Extra Border Zone: 2FFA0 h Media Specific [16..783]:
Thank you for your analysis. I uninstalled the drive and rebooted. It said cd rom in the systray when detected but showed up normally as DVD ROM in My Computer and in Device Manager. I couldn't figure out how to see if DMA was on or off. I've nearly always burned DVD-R's and that's what this one was. After a failed burn it shows up as a CD drive and is not accessible. I don't know why the speed went up to 6X. I do notice that I'm never seeing 18X as an option now which is a good thing as the disks I buy are not rated above 16X anyway and have invariably failed at 18X on any DVD burn. Have I answered all your questions now? What else should I try now?
If I was you go get a couple of DVD rw saves wasting disk and has I said in my previous post them disk you are using are unreliable go get a pack of verbatim Also is that log for burning a DVD-r or a cdr? If its dv-r these disk’s aren’t reliable 03 43 4D 43 20 4D 41 00 - 04 47 2E 20 41 4D 33 00 .CMC.MA..G..AM3. And also the disk’s you are using according too Nero can’t be burned any faster then 6x
Dma guide http://forums.afterdawn.com/thread_view.cfm/260038 Also read this reference too the media you are using cheap shit http://forums.afterdawn.com/thread_view.cfm/262544
Thanks. I didn't read the wrap about the recommended burn speed. I already have ten r/w disks but I prefer to use them for stuff I know I am going to erase later such as movies because I seldom watch the same movie twice. The dilemma is that I have experienced a degradation in performance and a drastic increase in errors while nearing the end of a spindle of 75 or 100 disks of the same brand. Also, I prefer to use the printable disks because my printer is enabled to do that. I just purchased a spindle of 50 of the type of disks that you say are limited to 6X, so I can't afford to toss them. The errors began just before the end of the previous spindle. I am limited locally in my purchases but I will certainly have a look for the Verbatim brand to see if there is am improvment. If I can't find them locally I may try via Futureshop or Staples. For now the simplest solution is to use my external burner as I seldom or never have had an error on that one using a variety of the cheapest disks I can buy and always selecting 16X for DVD's and 40X or 48X for CD's.