timlturner Posted December 7, 2012 Posted December 7, 2012 Trying to sort out why I'm burning about 20% Coasters, regardless of Media. How does one tell if it's your Laptop, your Burner, your media or what? I've tried slowing down the speed, no help. Tried 3 different Media, so far no problem on my other computer.... but sometimes it seems to do find. Usually the 2nd burn is a coaster. I don't think the log tells us much to resolve this issue does it? ImgBurn tells me the operation succeeded, but they are coasters. You can see the imprint where it burned, but nothing on another computer but the .ini file on the disc. ; //****************************************\\ ; ImgBurn Version 2.5.7.0 - Log ; Thursday, 06 December 2012, 12:12:45 ; \\****************************************// ; ; I 11:48:08 ImgBurn Version 2.5.7.0 started! I 11:48:08 Microsoft Windows 7 Home Premium x64 Edition (6.1, Build 7601 : Service Pack 1) I 11:48:08 Total Physical Memory: 6,183,084 KB - Available: 3,313,008 KB I 11:48:08 Initialising SPTI... I 11:48:08 Searching for SCSI / ATAPI devices... I 11:48:09 -> Drive 1 - Info: TSSTcorp DVD+-RW TS-L633J D400 (D:) (ATAPI) I 11:48:09 Found 1 DVD±RW/RAM! I 11:58:30 Operation Started! I 11:58:30 Building Image Tree... I 11:58:31 Checking Directory Depth... I 11:58:31 Calculating Totals... I 11:58:31 Preparing Image... I 11:58:31 Checking Path Length... I 11:58:31 Contents: 1 File, 1 Folder I 11:58:31 Content Type: Data I 11:58:31 Data Type: MODE1/2048 I 11:58:31 File System(s): ISO9660, Joliet, UDF (1.02) I 11:58:31 Volume Label: [Not Configured] I 11:58:31 Size: 1,137,105,346 bytes I 11:58:31 Sectors: 555,228 I 11:58:31 Image Size: 1,137,672,192 bytes I 11:58:31 Image Sectors: 555,504 I 11:58:31 Operation Successfully Completed! - Duration: 00:00:00 I 11:59:33 Operation Started! I 11:59:33 Building Image Tree... I 11:59:33 Checking Directory Depth... I 11:59:33 Calculating Totals... I 11:59:33 Preparing Image... I 11:59:34 Checking Path Length... I 11:59:34 Contents: 224 Files, 2 Folders I 11:59:34 Content Type: Data I 11:59:34 Data Type: MODE1/2048 I 11:59:34 File System(s): ISO9660, Joliet, UDF (1.02) I 11:59:34 Volume Label: [Not Configured] I 11:59:34 Size: 2,273,146,686 bytes I 11:59:34 Sectors: 1,110,045 I 11:59:34 Image Size: 2,274,459,648 bytes I 11:59:34 Image Sectors: 1,110,576 I 11:59:34 Operation Successfully Completed! - Duration: 00:00:00 I 12:00:09 Operation Started! I 12:00:09 Building Image Tree... I 12:00:10 Checking Directory Depth... I 12:00:10 Calculating Totals... I 12:00:10 Preparing Image... I 12:00:10 Checking Path Length... I 12:00:10 Contents: 239 Files, 2 Folders I 12:00:10 Content Type: Data I 12:00:10 Data Type: MODE1/2048 I 12:00:10 File System(s): ISO9660, Joliet, UDF (1.02) I 12:00:10 Volume Label: [Not Configured] I 12:00:10 Size: 2,598,684,562 bytes I 12:00:10 Sectors: 1,269,005 I 12:00:10 Image Size: 2,600,042,496 bytes I 12:00:10 Image Sectors: 1,269,552 I 12:00:10 Operation Successfully Completed! - Duration: 00:00:00 I 12:00:25 Operation Started! I 12:00:25 Building Image Tree... I 12:00:27 Checking Directory Depth... I 12:00:27 Calculating Totals... I 12:00:27 Preparing Image... I 12:00:27 Checking Path Length... I 12:00:27 Contents: 239 Files, 2 Folders I 12:00:27 Content Type: Data I 12:00:27 Data Type: MODE1/2048 I 12:00:27 File System(s): ISO9660, Joliet, UDF (1.02) I 12:00:27 Volume Label: HRS_12-1-2012 I 12:00:27 Size: 2,598,684,562 bytes I 12:00:27 Sectors: 1,269,005 I 12:00:27 Image Size: 2,600,042,496 bytes I 12:00:27 Image Sectors: 1,269,552 I 12:00:29 Operation Successfully Completed! - Duration: 00:00:03 I 12:00:29 Operation Started! I 12:00:29 Source File: -==/\/[bUILD IMAGE]\/\==- I 12:00:29 Source File Sectors: 1,269,552 (MODE1/2048) I 12:00:29 Source File Size: 2,600,042,496 bytes I 12:00:29 Source File Volume Identifier: HRS_12-1-2012 I 12:00:29 Source File Volume Set Identifier: 4186600C00135F21 I 12:00:29 Source File Application Identifier: ImgBurn v2.5.7.0 - The Ultimate Image Burner! I 12:00:29 Source File Implementation Identifier: ImgBurn I 12:00:29 Source File File System(s): ISO9660, Joliet, UDF (1.02) I 12:00:29 Destination Device: [0:1:0] TSSTcorp DVD+-RW TS-L633J D400 (D:) (ATAPI) I 12:00:29 Destination Media Type: DVD-R (Disc ID: CMC MAG. AM3) I 12:00:29 Destination Media Supported Write Speeds: 3x, 4x, 6x, 8x I 12:00:29 Destination Media Sectors: 2,297,888 I 12:00:29 Write Mode: DVD I 12:00:29 Write Type: DAO I 12:00:29 Write Speed: 5x I 12:00:29 Link Size: Auto I 12:00:29 Lock Volume: Yes I 12:00:29 Test Mode: No I 12:00:29 OPC: No I 12:00:29 BURN-Proof: Enabled W 12:00:29 Write Speed Miscompare! - Wanted: 6,925 KB/s (5x), Got: 5,540 KB/s (4x) W 12:00:29 The drive only supports writing these discs at 3x, 4x, 6x, 8x. I 12:00:30 Filling Buffer... (40 MB) I 12:00:30 Writing LeadIn... I 12:01:08 Writing Session 1 of 1... (1 Track, LBA: 0 - 1269551) I 12:01:08 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 1269551) I 12:09:03 Synchronising Cache... I 12:09:25 Exporting Graph Data... I 12:09:25 Graph Data File: C:\Users\Tim\AppData\Roaming\ImgBurn\Graph Data Files\TSSTcorp_DVD+-RW_TS-L633J_D400_THURSDAY-DECEMBER-06-2012_12-00_PM_CMC_MAG._AM3_5x.ibg I 12:09:25 Export Successfully Completed! I 12:09:25 Operation Successfully Completed! - Duration: 00:08:52 I 12:09:25 Average Write Rate: 5,356 KB/s (3.9x) - Maximum Write Rate: 5,651 KB/s (4.1x) I 12:12:45 Close Request Acknowledged I 12:12:45 Closing Down... I 12:12:45 Shutting down SPTI... I 12:12:45 ImgBurn closed! ; I've burn a lot of CD's/DVD's on my Dell , perhaps it's wearing out? Dell L1702x, Intel i5-2410M CPU @ 2.30 GHz 6 GB Memory 64 Bit. NVIDIA GeForce GT 550M 1 GB.
LIGHTNING UK! Posted December 7, 2012 Posted December 7, 2012 You should re-enable the 'Verify' operation, especially if you're having problems... which you are. It sounds very much like the drive is reporting that is/has successfully burnt the disc, but the disc still looks like it's blank when it's reinserted or tried in another drive. Not a good sign To figure out exactly what's broken you'd test the drive with some known good/decent quality media - so something from Taiyo Yuden or Verbatim. If it still creates a useless burn on those, your drive is toast - or at least needs a serious clean. You shouldn't really ever have to drop the write speed below 8x for DVD+R / DVD-R discs. btw, there's a D500 firmware available for the drive. http://www.firmwarehq.com/Samsung/TS-L633J/files.html
timlturner Posted December 7, 2012 Author Posted December 7, 2012 Thanks for the heads up on the firmware update, I did that, probably not the problem. I first thought it was the Memorex cheapo's that was the culprit, but I had a few expensive Sony's and it burned two successfully and then the 3rd was coaster. I guess I should buy some that are reommended here and give it a try, as I burn several hundred DVD's per racing season and don't think I ever had a problem until not which was why I was thinking Memorex might be the culprit. I use them on my Dell Desktop and so far no problem though... I didn't know if the cleaning disc's or kits worked or were really needed, so I'll read through any recommendations here and give that a try too. I imagine replacing a DVD drive in a laptop is not cost effective either when you really need to upgrade to another machine with a 3GB video card and 16GB of RAM to be happy. can't say as I haven't been happy with my Dell other than this though. Thanks a million!
timlturner Posted December 7, 2012 Author Posted December 7, 2012 Perhaps the Firmware update helped, it certainly performed much faster and the 1st burn, even with the Cheap Memorex was a success! I was wondering what was the purpose of the verify, you usually know if it's good or not besides taking twice as long to burn w/ verify on? Does it help you anylize? Great program! Better than any I've paid for. Thanks Tim
timlturner Posted December 7, 2012 Author Posted December 7, 2012 Perhaps the Firmware update helped, it certainly performed much faster and the 1st burn, even with the Cheap Memorex was a success! I was wondering what was the purpose of the verify, you usually know if it's good or not besides taking twice as long to burn w/ verify on? Does it help you anylize? Great program! Better than any I've paid for. Thanks Tim Forgot to post the new log: ; //****************************************\\ ; ImgBurn Version 2.5.7.0 - Log ; Friday, 07 December 2012, 13:18:37 ; \\****************************************// ; ; I 12:59:40 ImgBurn Version 2.5.7.0 started! I 12:59:40 Microsoft Windows 7 Home Premium x64 Edition (6.1, Build 7601 : Service Pack 1) I 12:59:40 Total Physical Memory: 6,183,084 KB - Available: 4,184,516 KB I 12:59:40 Initialising SPTI... I 12:59:40 Searching for SCSI / ATAPI devices... I 12:59:41 -> Drive 1 - Info: TSSTcorp DVD+-RW TS-L633J D400 (D:) (ATAPI) I 12:59:41 Found 1 DVD±RW/RAM! I 13:00:35 Operation Started! I 13:00:35 Building Image Tree... I 13:00:35 Checking Directory Depth... I 13:00:35 Calculating Totals... I 13:00:35 Preparing Image... I 13:00:36 Checking Path Length... I 13:00:36 Contents: 96 Files, 1 Folder I 13:00:36 Content Type: Data I 13:00:36 Data Type: MODE1/2048 I 13:00:36 File System(s): ISO9660, Joliet, UDF (1.02) I 13:00:36 Volume Label: [Not Configured] I 13:00:36 Size: 499,741,105 bytes I 13:00:36 Sectors: 244,065 I 13:00:36 Image Size: 500,629,504 bytes I 13:00:36 Image Sectors: 244,448 I 13:00:36 Operation Successfully Completed! - Duration: 00:00:00 I 13:01:43 Operation Started! I 13:01:43 Building Image Tree... I 13:01:44 Checking Directory Depth... I 13:01:44 Calculating Totals... I 13:01:44 Preparing Image... I 13:01:44 Checking Path Length... I 13:01:44 Contents: 130 Files, 1 Folder I 13:01:44 Content Type: Data I 13:01:44 Data Type: MODE1/2048 I 13:01:44 File System(s): ISO9660, Joliet, UDF (1.02) I 13:01:44 Volume Label: [Not Configured] I 13:01:44 Size: 717,741,615 bytes I 13:01:44 Sectors: 350,527 I 13:01:44 Image Size: 718,733,312 bytes I 13:01:44 Image Sectors: 350,944 I 13:01:44 Operation Successfully Completed! - Duration: 00:00:00 I 13:01:57 Operation Started! I 13:01:57 Building Image Tree... I 13:02:02 Checking Directory Depth... I 13:02:02 Calculating Totals... I 13:02:02 Preparing Image... I 13:02:02 Checking Path Length... I 13:02:02 Contents: 130 Files, 1 Folder I 13:02:02 Content Type: Data I 13:02:02 Data Type: MODE1/2048 I 13:02:02 File System(s): ISO9660, Joliet, UDF (1.02) I 13:02:02 Volume Label: Group B I 13:02:02 Size: 717,741,615 bytes I 13:02:02 Sectors: 350,527 I 13:02:02 Image Size: 718,733,312 bytes I 13:02:02 Image Sectors: 350,944 I 13:02:06 Operation Successfully Completed! - Duration: 00:00:08 I 13:02:06 Operation Started! I 13:02:06 Source File: -==/\/[bUILD IMAGE]\/\==- I 13:02:06 Source File Sectors: 350,944 (MODE1/2048) I 13:02:06 Source File Size: 718,733,312 bytes I 13:02:06 Source File Volume Identifier: Group B I 13:02:06 Source File Volume Set Identifier: 4187683C00055AD9 I 13:02:06 Source File Application Identifier: ImgBurn v2.5.7.0 - The Ultimate Image Burner! I 13:02:06 Source File Implementation Identifier: ImgBurn I 13:02:06 Source File File System(s): ISO9660, Joliet, UDF (1.02) I 13:02:06 Destination Device: [0:1:0] TSSTcorp DVD+-RW TS-L633J D400 (D:) (ATAPI) I 13:02:06 Destination Media Type: CD-R (Disc ID: 97m15s17f, Ritek Co.) I 13:02:06 Destination Media Supported Write Speeds: 10x, 16x, 20x, 24x I 13:02:06 Destination Media Sectors: 359,843 I 13:02:06 Write Mode: CD I 13:02:06 Write Type: SAO I 13:02:06 Write Speed: MAX I 13:02:06 Lock Volume: Yes I 13:02:06 Test Mode: No I 13:02:06 OPC: No I 13:02:06 BURN-Proof: Enabled I 13:02:06 Write Speed Successfully Set! - Effective: 4,234 KB/s (24x) I 13:02:06 Filling Buffer... (40 MB) I 13:02:08 Writing LeadIn... I 13:02:38 Writing Session 1 of 1... (1 Track, LBA: 0 - 350943) I 13:02:38 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 350943) I 13:07:22 Synchronising Cache... I 13:07:29 Exporting Graph Data... I 13:07:29 Graph Data File: C:\Users\Tim\AppData\Roaming\ImgBurn\Graph Data Files\TSSTcorp_DVD+-RW_TS-L633J_D400_FRIDAY-DECEMBER-07-2012_1-02_PM_97m15s17f_MAX.ibg I 13:07:29 Export Successfully Completed! I 13:07:29 Operation Successfully Completed! - Duration: 00:05:23 I 13:07:29 Average Write Rate: 2,480 KB/s (16.5x) - Maximum Write Rate: 3,634 KB/s (24.2x) I 13:07:29 Cycling Tray before Verify... W 13:12:15 Waiting for device to become ready... I 13:12:17 Device Ready! I 13:12:18 Operation Started! I 13:12:18 Source Device: [0:1:0] TSSTcorp DVD+-RW TS-L633J D400 (D:) (ATAPI) I 13:12:18 Source Media Type: CD-R (Disc ID: 97m15s17f, Ritek Co.) I 13:12:18 Source Media Supported Read Speeds: 10x, 16x, 20x, 24x I 13:12:18 Source Media Supported Write Speeds: 10x, 16x, 20x, 24x I 13:12:18 Image File: -==/\/[bUILD IMAGE]\/\==- I 13:12:18 Image File Sectors: 350,944 (MODE1/2048) I 13:12:18 Image File Size: 718,733,312 bytes I 13:12:18 Image File Volume Identifier: Group B I 13:12:18 Image File Volume Set Identifier: 4187683C00055AD9 I 13:12:18 Image File Application Identifier: ImgBurn v2.5.7.0 - The Ultimate Image Burner! I 13:12:18 Image File Implementation Identifier: ImgBurn I 13:12:18 Image File File System(s): ISO9660, Joliet, UDF (1.02) I 13:12:18 Read Speed (Data/Audio): MAX / MAX I 13:12:19 Verifying Session 1 of 1... (1 Track, LBA: 0 - 350943) I 13:12:19 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 350943) I 13:16:53 Exporting Graph Data... I 13:16:53 Graph Data File: C:\Users\Tim\AppData\Roaming\ImgBurn\Graph Data Files\TSSTcorp_DVD+-RW_TS-L633J_D400_FRIDAY-DECEMBER-07-2012_1-02_PM_97m15s17f_MAX.ibg I 13:16:53 Export Successfully Completed! I 13:16:53 Operation Successfully Completed! - Duration: 00:04:29 I 13:16:53 Average Verify Rate: 2,618 KB/s (17.5x) - Maximum Verify Rate: 3,729 KB/s (24.9x) I 13:18:37 Close Request Acknowledged I 13:18:37 Closing Down... I 13:18:37 Shutting down SPTI... I 13:18:37 ImgBurn closed! ; ; ; //****************************************\\ ; ImgBurn Version 2.5.7.0 - Log ; Friday, 07 December 2012, 12:06:39 ; \\****************************************// ; ; I 11:30:03 ImgBurn Version 2.5.7.0 started! I 11:30:03 Microsoft Windows 7 Home Premium x64 Edition (6.1, Build 7601 : Service Pack 1) I 11:30:03 Total Physical Memory: 6,183,084 KB - Available: 3,745,136 KB I 11:30:03 Initialising SPTI... I 11:30:03 Searching for SCSI / ATAPI devices... I 11:30:03 -> Drive 1 - Info: TSSTcorp DVD+-RW TS-L633J D400 (D:) (ATAPI) I 11:30:03 Found 1 DVD±RW/RAM! I 12:06:38 Close Request Acknowledged I 12:06:38 Closing Down... I 12:06:39 Shutting down SPTI... I 12:06:39 ImgBurn closed! ; ; ; //****************************************\\ ; ImgBurn Version 2.5.7.0 - Log ; Thursday, 06 December 2012, 12:12:45 ; \\****************************************// ; ; I 11:48:08 ImgBurn Version 2.5.7.0 started! I 11:48:08 Microsoft Windows 7 Home Premium x64 Edition (6.1, Build 7601 : Service Pack 1) I 11:48:08 Total Physical Memory: 6,183,084 KB - Available: 3,313,008 KB I 11:48:08 Initialising SPTI... I 11:48:08 Searching for SCSI / ATAPI devices... I 11:48:09 -> Drive 1 - Info: TSSTcorp DVD+-RW TS-L633J D400 (D:) (ATAPI) I 11:48:09 Found 1 DVD±RW/RAM! I 11:58:30 Operation Started! I 11:58:30 Building Image Tree... I 11:58:31 Checking Directory Depth... I 11:58:31 Calculating Totals... I 11:58:31 Preparing Image... I 11:58:31 Checking Path Length... I 11:58:31 Contents: 1 File, 1 Folder I 11:58:31 Content Type: Data I 11:58:31 Data Type: MODE1/2048 I 11:58:31 File System(s): ISO9660, Joliet, UDF (1.02) I 11:58:31 Volume Label: [Not Configured] I 11:58:31 Size: 1,137,105,346 bytes I 11:58:31 Sectors: 555,228 I 11:58:31 Image Size: 1,137,672,192 bytes I 11:58:31 Image Sectors: 555,504 I 11:58:31 Operation Successfully Completed! - Duration: 00:00:00 I 11:59:33 Operation Started! I 11:59:33 Building Image Tree... I 11:59:33 Checking Directory Depth... I 11:59:33 Calculating Totals... I 11:59:33 Preparing Image... I 11:59:34 Checking Path Length... I 11:59:34 Contents: 224 Files, 2 Folders I 11:59:34 Content Type: Data I 11:59:34 Data Type: MODE1/2048 I 11:59:34 File System(s): ISO9660, Joliet, UDF (1.02) I 11:59:34 Volume Label: [Not Configured] I 11:59:34 Size: 2,273,146,686 bytes I 11:59:34 Sectors: 1,110,045 I 11:59:34 Image Size: 2,274,459,648 bytes I 11:59:34 Image Sectors: 1,110,576 I 11:59:34 Operation Successfully Completed! - Duration: 00:00:00 I 12:00:09 Operation Started! I 12:00:09 Building Image Tree... I 12:00:10 Checking Directory Depth... I 12:00:10 Calculating Totals... I 12:00:10 Preparing Image... I 12:00:10 Checking Path Length... I 12:00:10 Contents: 239 Files, 2 Folders I 12:00:10 Content Type: Data I 12:00:10 Data Type: MODE1/2048 I 12:00:10 File System(s): ISO9660, Joliet, UDF (1.02) I 12:00:10 Volume Label: [Not Configured] I 12:00:10 Size: 2,598,684,562 bytes I 12:00:10 Sectors: 1,269,005 I 12:00:10 Image Size: 2,600,042,496 bytes I 12:00:10 Image Sectors: 1,269,552 I 12:00:10 Operation Successfully Completed! - Duration: 00:00:00 I 12:00:25 Operation Started! I 12:00:25 Building Image Tree... I 12:00:27 Checking Directory Depth... I 12:00:27 Calculating Totals... I 12:00:27 Preparing Image... I 12:00:27 Checking Path Length... I 12:00:27 Contents: 239 Files, 2 Folders I 12:00:27 Content Type: Data I 12:00:27 Data Type: MODE1/2048 I 12:00:27 File System(s): ISO9660, Joliet, UDF (1.02) I 12:00:27 Volume Label: HRS_12-1-2012 I 12:00:27 Size: 2,598,684,562 bytes I 12:00:27 Sectors: 1,269,005 I 12:00:27 Image Size: 2,600,042,496 bytes I 12:00:27 Image Sectors: 1,269,552 I 12:00:29 Operation Successfully Completed! - Duration: 00:00:03 I 12:00:29 Operation Started! I 12:00:29 Source File: -==/\/[bUILD IMAGE]\/\==- I 12:00:29 Source File Sectors: 1,269,552 (MODE1/2048) I 12:00:29 Source File Size: 2,600,042,496 bytes I 12:00:29 Source File Volume Identifier: HRS_12-1-2012 I 12:00:29 Source File Volume Set Identifier: 4186600C00135F21 I 12:00:29 Source File Application Identifier: ImgBurn v2.5.7.0 - The Ultimate Image Burner! I 12:00:29 Source File Implementation Identifier: ImgBurn I 12:00:29 Source File File System(s): ISO9660, Joliet, UDF (1.02) I 12:00:29 Destination Device: [0:1:0] TSSTcorp DVD+-RW TS-L633J D400 (D:) (ATAPI) I 12:00:29 Destination Media Type: DVD-R (Disc ID: CMC MAG. AM3) I 12:00:29 Destination Media Supported Write Speeds: 3x, 4x, 6x, 8x I 12:00:29 Destination Media Sectors: 2,297,888 I 12:00:29 Write Mode: DVD I 12:00:29 Write Type: DAO I 12:00:29 Write Speed: 5x I 12:00:29 Link Size: Auto I 12:00:29 Lock Volume: Yes I 12:00:29 Test Mode: No I 12:00:29 OPC: No I 12:00:29 BURN-Proof: Enabled W 12:00:29 Write Speed Miscompare! - Wanted: 6,925 KB/s (5x), Got: 5,540 KB/s (4x) W 12:00:29 The drive only supports writing these discs at 3x, 4x, 6x, 8x. I 12:00:30 Filling Buffer... (40 MB) I 12:00:30 Writing LeadIn... I 12:01:08 Writing Session 1 of 1... (1 Track, LBA: 0 - 1269551) I 12:01:08 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 1269551) I 12:09:03 Synchronising Cache... I 12:09:25 Exporting Graph Data... I 12:09:25 Graph Data File: C:\Users\Tim\AppData\Roaming\ImgBurn\Graph Data Files\TSSTcorp_DVD+-RW_TS-L633J_D400_THURSDAY-DECEMBER-06-2012_12-00_PM_CMC_MAG._AM3_5x.ibg I 12:09:25 Export Successfully Completed! I 12:09:25 Operation Successfully Completed! - Duration: 00:08:52 I 12:09:25 Average Write Rate: 5,356 KB/s (3.9x) - Maximum Write Rate: 5,651 KB/s (4.1x) I 12:12:45 Close Request Acknowledged I 12:12:45 Closing Down... I 12:12:45 Shutting down SPTI... I 12:12:45 ImgBurn closed!
LIGHTNING UK! Posted December 7, 2012 Posted December 7, 2012 The purpose of Verify is to discover if the disc is actually fully readable and that all the data on it is present and correct. A successful burn means nothing on its own. The drive can think it's been burning ok and yet you end up with a totally unreadable disc at the end of it - as was the case here.
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