I/O error

[Pegasus]

Hello!

 

May I ask you for guidance?

 

I bought a brand new LG drive two days ago and installed it yesterday.

Today, I tried to burn an ISO, but during the verification process, the GUI said that an error had ocurred.

So I tried again... four times.

I tried with a different image. Same result.

 

I thought that updating the firmware and disabling the other optical drive would solve the problem, but it didn't. Perhaps it wasn't plugged in well? No, that ain't either. I'm using Phillips DVD+R, which had never failed to me before.

 

The error I get says:

I/O error

 

Device: [0:0:0] HL-DT-ST DVDRAM GH24NS95 RN01 (ATA)

 

Scistatus: 0x02

Interpretation: Check condition

 

CDB: 28 00 00 00 67 B0 00 00 01 00

Interpretation: Read (10) - Sector 26544

 

Sense Area: 71 00 03 00 00 00 00 0A 00 00 00 00 11 05 00 00 00 00

Interpretation: L-EC Uncorrectable error

 

I'd appreciate any help!

 

EDIT: Adding log.

I 17:32:51 ImgBurn Version 2.5.6.0 started!
I 17:32:51 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)
I 17:32:51 Total Physical Memory: 1.048.044 KB  -  Available: 694.620 KB
W 17:32:51 Duplex Secure's SPTD driver can have a detrimental effect on drive performance.
I 17:32:51 Initialising SPTI...
I 17:32:51 Searching for SCSI / ATAPI devices...
I 17:32:51 -> Drive 1 - Info: DTSOFT BDROM 1.05 (F:) (Virtual)
I 17:32:52 -> Drive 2 - Info: HL-DT-ST DVDRAM GH24NS95 RN01-J0 (G:) (ATA)
I 17:32:52 Found 1 DVD±RW/RAM and 1 BD-ROM!
I 17:35:20 Operation Started!
I 17:35:20 Source File: C:\Documents and Settings\****\Escritorio\Mega Man X Collection.MDS
I 17:35:20 Source File Sectors: 1.425.744 (MODE1/2048)
I 17:35:20 Source File Size: 2.919.923.712 bytes
I 17:35:20 Source File Volume Identifier: MEGAMANXCOLLECTION
I 17:35:20 Source File Volume Set Identifier: 0==94633SCEI
I 17:35:20 Source File Application Identifier: PLAYSTATION
I 17:35:20 Source File Implementation Identifier: DVD-ROM GENERATOR
I 17:35:20 Source File File System(s): ISO9660, UDF (1.02)
I 17:35:20 Destination Device: [0:0:0] HL-DT-ST DVDRAM GH24NS95 RN01 (G:) (ATA)
I 17:35:20 Destination Media Type: DVD+R (Disc ID: CMC MAG-M01-00)
I 17:35:20 Destination Media Supported Write Speeds: 8x, 16x
I 17:35:20 Destination Media Sectors: 2.295.104
I 17:35:20 Write Mode: DVD
I 17:35:20 Write Type: DAO
I 17:35:20 Write Speed: 8x
I 17:35:20 DVD+R Reserve Track: No
I 17:35:20 Link Size: Auto
I 17:35:20 Lock Volume: Yes
I 17:35:20 Test Mode: No
I 17:35:20 OPC: No
I 17:35:20 BURN-Proof: Enabled
I 17:35:20 Write Speed Successfully Set! - Effective: 11.080 KB/s (8x)
I 17:35:20 Book Type Setting: DVD-ROM
I 17:35:22 Filling Buffer... (40 MB)
I 17:35:23 Writing LeadIn...
W 17:35:38 Failed to Write Sectors 0 - 31 - Reason: No Additional Sense Information
W 17:35:38 Retrying (1 of 20)...
I 17:35:46 Writing LeadIn...
I 17:35:46 Writing Session 1 of 1... (1 Track, LBA: 0 - 1425743)
I 17:35:46 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 1425743)
I 17:41:10 Synchronising Cache...
I 17:41:14 Closing Track...
I 17:41:17 Finalising Disc...
I 17:41:29 Exporting Graph Data...
I 17:41:29 Graph Data File: C:\Documents and Settings\****\Datos de programa\ImgBurn\Graph Data Files\HL-DT-ST_DVDRAM_GH24NS95_RN01_LUNES-19-DE-AGOSTO-DE-2013_05-35_p.m._CMC_MAG-M01-00_8x.ibg
I 17:41:29 Export Successfully Completed!
I 17:41:29 Operation Successfully Completed! - Duration: 00:06:08
I 17:41:29 Average Write Rate: 8.828 KB/s (6.4x) - Maximum Write Rate: 11.158 KB/s (8.1x)
I 17:41:29 Cycling Tray before Verify...
W 17:41:38 Waiting for device to become ready...
I 17:41:49 Device Ready!
I 17:41:52 Operation Started!
I 17:41:52 Source Device: [0:0:0] HL-DT-ST DVDRAM GH24NS95 RN01 (G:) (ATA)
I 17:41:52 Source Media Type: DVD+R (Book Type: DVD-ROM) (Disc ID: CMC MAG-M01-00)
I 17:41:52 Source Media Supported Write Speeds: 8x, 16x
I 17:41:52 Image File: C:\Documents and Settings\****\Escritorio\Mega Man X Collection.MDS
I 17:41:52 Image File Sectors: 1.425.744 (MODE1/2048)
I 17:41:52 Image File Size: 2.919.923.712 bytes
I 17:41:52 Image File Volume Identifier: MEGAMANXCOLLECTION
I 17:41:52 Image File Volume Set Identifier: 0==94633SCEI
I 17:41:52 Image File Application Identifier: PLAYSTATION
I 17:41:52 Image File Implementation Identifier: DVD-ROM GENERATOR
I 17:41:52 Image File File System(s): ISO9660, UDF (1.02)
I 17:41:52 Read Speed (Data/Audio): MAX / MAX
I 17:41:54 Verifying Session 1 of 1... (1 Track, LBA: 0 - 1425743)
I 17:41:54 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 1425743)
W 17:43:14 Failed to Read Sector 295507 - Reason: L-EC Uncorrectable Error
W 17:43:14 Sector 295507 maps to File: \MMX3\MOVIE\04.pss
E 17:43:56 Failed to Read Sector 295507 - Reason: L-EC Uncorrectable Error
E 17:43:56 Sector 295507 maps to File: \MMX3\MOVIE\04.pss
E 17:43:56 Failed to Verify Sectors!
I 17:43:57 Exporting Graph Data...
I 17:43:57 Graph Data File: C:\Documents and Settings\****\Datos de programa\ImgBurn\Graph Data Files\HL-DT-ST_DVDRAM_GH24NS95_RN01_LUNES-19-DE-AGOSTO-DE-2013_05-35_p.m._CMC_MAG-M01-00_8x.ibg
I 17:43:57 Export Successfully Completed!
E 17:43:57 Operation Failed! - Duration: 00:02:03
I 17:43:57 Average Verify Rate: 4.844 KB/s (3.5x) - Maximum Verify Rate: 11.885 KB/s (8.6x)
I 17:44:22 Close Request Acknowledged
I 17:44:22 Closing Down...
I 17:44:23 Shutting down SPTI...
I 17:44:23 ImgBurn closed!
I 17:25:26 ImgBurn Version 2.5.6.0 started!
I 17:25:26 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)
I 17:25:26 Total Physical Memory: 1.048.044 KB  -  Available: 684.080 KB
W 17:25:26 Duplex Secure's SPTD driver can have a detrimental effect on drive performance.
I 17:25:26 Initialising SPTI...
I 17:25:26 Searching for SCSI / ATAPI devices...
I 17:25:26 -> Drive 1 - Info: DTSOFT BDROM 1.05 (F:) (Virtual)
I 17:25:26 -> Drive 2 - Info: HL-DT-ST DVDRAM GH24NS95 RN01-J0 (G:) (ATA)
I 17:25:26 Found 1 DVD±RW/RAM and 1 BD-ROM!
I 17:32:46 Close Request Acknowledged
I 17:32:46 Closing Down...
I 17:32:46 Shutting down SPTI...
I 17:32:46 ImgBurn closed!
I 17:32:14 ImgBurn Version 2.5.6.0 started!
I 17:32:14 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)
I 17:32:14 Total Physical Memory: 1.048.044 KB  -  Available: 667.524 KB
W 17:32:14 Duplex Secure's SPTD driver can have a detrimental effect on drive performance.
I 17:32:14 Initialising SPTI...
I 17:32:14 Searching for SCSI / ATAPI devices...
I 17:32:14 -> Drive 1 - Info: DTSOFT BDROM 1.05 (F:) (Virtual)
I 17:32:14 -> Drive 2 - Info: HL-DT-ST DVDRAM GH24NS95 RN01-J0 (G:) (ATA)
I 17:32:14 Found 1 DVD±RW/RAM and 1 BD-ROM!
I 17:32:39 Close Request Acknowledged
I 17:32:39 Closing Down...
I 17:32:39 Shutting down SPTI...
I 17:32:39 ImgBurn closed!
I 13:04:06 ImgBurn Version 2.5.6.0 started!
I 13:04:06 Microsoft Windows XP Professional (5.1, Build 2600 : Service Pack 3)
I 13:04:06 Total Physical Memory: 1.048.044 KB  -  Available: 280.460 KB
W 13:04:06 Drive H:\ (FAT32) does not support single files > 4 GB in size.
W 13:04:06 Duplex Secure's SPTD driver can have a detrimental effect on drive performance.
I 13:04:06 Initialising SPTI...
I 13:04:06 Searching for SCSI / ATAPI devices...
I 13:04:06 -> Drive 1 - Info: DTSOFT BDROM 1.05 (F:) (Virtual)
I 13:04:06 -> Drive 2 - Info: HL-DT-ST DVDRAM GH24NS95 RN01-J0 (G:) (ATA)
I 13:04:06 -> Drive 3 - Info: TSSTcorp CD/DVDW SH-S182F SB02 (E:) (ATA)
I 13:04:06 Found 2 DVD±RW/RAMs and 1 BD-ROM!
I 13:07:55 Operation Started!
I 13:07:55 Source File: C:\Documents and Settings\****\Escritorio\Mega Man X Collection.MDS
I 13:07:55 Source File Sectors: 1.425.744 (MODE1/2048)
I 13:07:55 Source File Size: 2.919.923.712 bytes
I 13:07:55 Source File Volume Identifier: MEGAMANXCOLLECTION
I 13:07:55 Source File Volume Set Identifier: 0==94633SCEI
I 13:07:55 Source File Application Identifier: PLAYSTATION
I 13:07:55 Source File Implementation Identifier: DVD-ROM GENERATOR
I 13:07:55 Source File File System(s): ISO9660, UDF (1.02)
I 13:07:55 Destination Device: [0:0:0] HL-DT-ST DVDRAM GH24NS95 RN01 (G:) (ATA)
I 13:07:55 Destination Media Type: DVD+R (Disc ID: CMC MAG-M01-00)
I 13:07:55 Destination Media Supported Write Speeds: 8x, 16x
I 13:07:55 Destination Media Sectors: 2.295.104
I 13:07:55 Write Mode: DVD
I 13:07:55 Write Type: DAO
I 13:07:55 Write Speed: 2x
I 13:07:55 DVD+R Reserve Track: No
I 13:07:55 Link Size: Auto
I 13:07:55 Lock Volume: Yes
I 13:07:55 Test Mode: No
I 13:07:55 OPC: No
I 13:07:55 BURN-Proof: Enabled
W 13:07:55 Write Speed Miscompare! - Wanted: 2.770 KB/s (2x), Got: 11.080 KB/s (8x)
W 13:07:55 The drive only supports writing these discs at 8x, 16x.
I 13:07:55 Book Type Setting: DVD-ROM
I 13:07:58 Filling Buffer... (40 MB)
I 13:07:58 Writing LeadIn...
W 13:08:13 Failed to Write Sectors 0 - 31 - Reason: No Additional Sense Information
W 13:08:13 Retrying (1 of 20)...
I 13:08:22 Writing LeadIn...
I 13:08:22 Writing Session 1 of 1... (1 Track, LBA: 0 - 1425743)
I 13:08:22 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 1425743)
I 13:14:00 Synchronising Cache...
I 13:14:01 Closing Track...
I 13:14:04 Finalising Disc...
I 13:14:16 Exporting Graph Data...
I 13:14:16 Graph Data File: C:\Documents and Settings\****\Datos de programa\ImgBurn\Graph Data Files\HL-DT-ST_DVDRAM_GH24NS95_RN01_LUNES-19-DE-AGOSTO-DE-2013_01-07_p.m._CMC_MAG-M01-00_2x.ibg
I 13:14:16 Export Successfully Completed!
I 13:14:16 Operation Successfully Completed! - Duration: 00:06:20
I 13:14:16 Average Write Rate: 8.461 KB/s (6.1x) - Maximum Write Rate: 11.211 KB/s (8.1x)
I 13:14:16 Cycling Tray before Verify...
W 13:14:25 Waiting for device to become ready...
I 13:14:39 Device Ready!
I 13:14:42 Operation Started!
I 13:14:42 Source Device: [0:0:0] HL-DT-ST DVDRAM GH24NS95 RN01 (G:) (ATA)
I 13:14:42 Source Media Type: DVD+R (Book Type: DVD+R) (Disc ID: CMC MAG-M01-00)
I 13:14:42 Source Media Supported Write Speeds: 8x, 16x
I 13:14:42 Image File: C:\Documents and Settings\****\Escritorio\Mega Man X Collection.MDS
I 13:14:42 Image File Sectors: 1.425.744 (MODE1/2048)
I 13:14:42 Image File Size: 2.919.923.712 bytes
I 13:14:42 Image File Volume Identifier: MEGAMANXCOLLECTION
I 13:14:42 Image File Volume Set Identifier: 0==94633SCEI
I 13:14:42 Image File Application Identifier: PLAYSTATION
I 13:14:42 Image File Implementation Identifier: DVD-ROM GENERATOR
I 13:14:42 Image File File System(s): ISO9660, UDF (1.02)
I 13:14:42 Read Speed (Data/Audio): MAX / MAX
I 13:14:43 Verifying Session 1 of 1... (1 Track, LBA: 0 - 1425743)
I 13:14:43 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 1425743)
W 13:15:13 Failed to Read Sector 15970 - Reason: L-EC Uncorrectable Error
W 13:15:13 Sector 15970 maps to File: \launcher\image08\rs5_1.tm2
W 13:16:21 Failed to Read Sector 15970 - Reason: L-EC Uncorrectable Error
W 13:16:21 Sector 15970 maps to File: \launcher\image08\rs5_1.tm2
W 13:16:29 Failed to Read Sector 15972 - Reason: L-EC Uncorrectable Error
W 13:16:29 Sector 15972 maps to File: \launcher\image08\rs5_1.tm2
E 13:16:31 Failed to Read Sector 15972 - Reason: L-EC Uncorrectable Error
E 13:16:31 Sector 15972 maps to File: \launcher\image08\rs5_1.tm2
E 13:16:31 Failed to Verify Sectors!
I 13:16:32 Exporting Graph Data...
I 13:16:32 Graph Data File: C:\Documents and Settings\****\Datos de programa\ImgBurn\Graph Data Files\HL-DT-ST_DVDRAM_GH24NS95_RN01_LUNES-19-DE-AGOSTO-DE-2013_01-07_p.m._CMC_MAG-M01-00_2x.ibg
I 13:16:32 Export Successfully Completed!
E 13:16:32 Operation Failed! - Duration: 00:01:48
I 13:16:32 Average Verify Rate: 298 KB/s (0.2x) - Maximum Verify Rate: 3.649 KB/s (2.6x)
I 13:23:20 Operation Started!
I 13:23:20 Source File: C:\Documents and Settings\****\Escritorio\Mega Man X Collection.MDS
I 13:23:20 Source File Sectors: 1.425.744 (MODE1/2048)
I 13:23:20 Source File Size: 2.919.923.712 bytes
I 13:23:20 Source File Volume Identifier: MEGAMANXCOLLECTION
I 13:23:20 Source File Volume Set Identifier: 0==94633SCEI
I 13:23:20 Source File Application Identifier: PLAYSTATION
I 13:23:20 Source File Implementation Identifier: DVD-ROM GENERATOR
I 13:23:20 Source File File System(s): ISO9660, UDF (1.02)
I 13:23:20 Destination Device: [0:0:0] HL-DT-ST DVDRAM GH24NS95 RN01 (G:) (ATA)
I 13:23:20 Destination Media Type: DVD+R (Disc ID: CMC MAG-M01-00)
I 13:23:20 Destination Media Supported Write Speeds: 8x, 16x
I 13:23:20 Destination Media Sectors: 2.295.104
I 13:23:20 Write Mode: DVD
I 13:23:20 Write Type: DAO
I 13:23:20 Write Speed: 8x
I 13:23:20 DVD+R Reserve Track: No
I 13:23:20 Link Size: Auto
I 13:23:20 Lock Volume: Yes
I 13:23:20 Test Mode: No
I 13:23:20 OPC: No
I 13:23:20 BURN-Proof: Enabled
I 13:23:20 Write Speed Successfully Set! - Effective: 11.080 KB/s (8x)
I 13:23:20 Book Type Setting: DVD-ROM
I 13:23:20 Filling Buffer... (40 MB)
I 13:23:21 Writing LeadIn...
W 13:23:36 Failed to Write Sectors 0 - 31 - Reason: No Additional Sense Information
W 13:23:36 Retrying (1 of 20)...
I 13:23:50 Writing LeadIn...
I 13:23:51 Writing Session 1 of 1... (1 Track, LBA: 0 - 1425743)
I 13:23:51 Writing Track 1 of 1... (MODE1/2048, LBA: 0 - 1425743)
I 13:28:47 Synchronising Cache...
I 13:28:51 Closing Track...
I 13:28:54 Finalising Disc...
I 13:29:06 Exporting Graph Data...
I 13:29:06 Graph Data File: C:\Documents and Settings\****\Datos de programa\ImgBurn\Graph Data Files\HL-DT-ST_DVDRAM_GH24NS95_RN01_LUNES-19-DE-AGOSTO-DE-2013_01-23_p.m._CMC_MAG-M01-00_8x.ibg
I 13:29:06 Export Successfully Completed!
I 13:29:06 Operation Successfully Completed! - Duration: 00:05:46
I 13:29:06 Average Write Rate: 9.633 KB/s (7.0x) - Maximum Write Rate: 11.211 KB/s (8.1x)
I 13:29:06 Cycling Tray before Verify...
W 13:29:15 Waiting for device to become ready...
I 13:29:27 Device Ready!
I 13:29:30 Operation Started!
I 13:29:30 Source Device: [0:0:0] HL-DT-ST DVDRAM GH24NS95 RN01 (G:) (ATA)
I 13:29:30 Source Media Type: DVD+R (Book Type: DVD-ROM) (Disc ID: CMC MAG-M01-00)
I 13:29:30 Source Media Supported Write Speeds: 8x, 16x
I 13:29:30 Image File: C:\Documents and Settings\****\Escritorio\Mega Man X Collection.MDS
I 13:29:30 Image File Sectors: 1.425.744 (MODE1/2048)
I 13:29:30 Image File Size: 2.919.923.712 bytes
I 13:29:30 Image File Volume Identifier: MEGAMANXCOLLECTION
I 13:29:30 Image File Volume Set Identifier: 0==94633SCEI
I 13:29:30 Image File Application Identifier: PLAYSTATION
I 13:29:30 Image File Implementation Identifier: DVD-ROM GENERATOR
I 13:29:30 Image File File System(s): ISO9660, UDF (1.02)
I 13:29:30 Read Speed (Data/Audio): MAX / MAX
I 13:29:31 Verifying Session 1 of 1... (1 Track, LBA: 0 - 1425743)
I 13:29:31 Verifying Track 1 of 1... (MODE1/2048, LBA: 0 - 1425743)
W 13:30:00 Failed to Read Sector 25737 - Reason: L-EC Uncorrectable Error
W 13:30:00 Sector 25737 maps to File: \launcher\SOUND\COM_BGM.BIN
E 13:34:16 Failed to Read Sector 25737 - Reason: L-EC Uncorrectable Error
E 13:34:16 Sector 25737 maps to File: \launcher\SOUND\COM_BGM.BIN
E 13:34:16 Failed to Verify Sectors!
I 13:34:17 Exporting Graph Data...
I 13:34:18 Graph Data File: C:\Documents and Settings\****\Datos de programa\ImgBurn\Graph Data Files\HL-DT-ST_DVDRAM_GH24NS95_RN01_LUNES-19-DE-AGOSTO-DE-2013_01-23_p.m._CMC_MAG-M01-00_8x.ibg
I 13:34:18 Export Successfully Completed!
E 13:34:18 Operation Failed! - Duration: 00:04:46
I 13:34:18 Average Verify Rate: 180 KB/s (0.1x) - Maximum Verify Rate: 7.821 KB/s (5.6x)
I 13:34:20 Close Request Acknowledged
I 13:34:20 Closing Down...
I 13:34:21 Shutting down SPTI...
I 13:34:21 ImgBurn closed!
 

Edited August 19, 2013 by Pegasus

[spinningwheel]

Please update ImgBurn.

 

And read this:

 

http://forum.imgburn.com/index.php?showtopic=8000

[Pegasus]

I had read that thread prior to posting here...

-Not burning a double layer disc.

-Using a good brand of DVD.

 

Update the firmware on your drive - right click the drive selection box and click 'Check For Firmware Updates' (or find it in 'Tools' -> 'Drive').

 

-Said I did.

 

Try cleaning the drive with a cleaning disc (or if you're feeling confident, take it apart and clean it manually).

 

-Said it's brand new, and I don't have a cleaning disc to try, in any case.

 

Try burning your current media at all of the write speeds your drive says it supports for that MID (look in the disc info text on the right of the main screen to see what they are).

 

-Always do. 8X is what I went with, supported by disk and drive.

 

Avoid using slimline laptop style drives - in general, they're rubbish.

 

-Desktop PC.

 

Buy a new drive that supports your current media better/properly (this is still going to be a bit hit and miss)

 

-...

 

 

As for the update, I will do it, no prob.

I don't get how this will solve my problem though... I mean, the old drive worked wonderfully well with this lovely software. Why wouldn't this one do?

 

I want to be absolutely sure of what must I do to fix it. I only have one DVD left to burn...

 

EDIT: Updated.

Edited August 20, 2013 by Pegasus

[Cynthia]

I bought a brand new LG drive two days ago and installed it yesterday.

 

No, that ain't either. I'm using Phillips DVD+R, which had never failed to me before.

 

Looks to me as your new burner is not a big fan of that media code.Different burners like the various media codes differently.

 

Disc ID: CMC MAG-M01-00

 

I would try with some Verbatim AZO discs, if those works - you now that your new burner is set up ok and is working. If those also fails - get it replaced.

[Pegasus]

I will try, thanks.

 

Problem is Verbatim discs are hard to get ahold of here.

Mind you, I'm not from the U.S., nor from Europe.

 

I've burnt like 50 Phillips DVDs and I had none ever fail me... prior to the purchase of this drive, that is.

 

I hope I can find some...

[spinningwheel]

The reason that I suggested the update was because we do not offer support for earlier versions of ImgBurn normally.  When you update you eliminate any of  the problems associated with the version that you are currently using and we are all on the same page when it comes to the software.  

 

I 13:29:30 Source Media Type: DVD+R (Book Type: DVD-ROM) (Disc ID: CMC MAG-M01-00)

 

Did a search on your media MID and maybe you should read a little.  (That's why I put the link in the last response.  The info contained there applies to single layer discs also.):

 

http://www.google.com/#fp=f45a2b3d063d39e5&q=disc+id+cmc+mag-m01-00

[Pegasus]

 

The reason that I suggested the update was because we do not offer support for earlier versions of ImgBurn normally.  When you update you eliminate any of  the problems associated with the version that you are currently using and we are all on the same page when it comes to the software.  

 

 

I 13:29:30 Source Media Type: DVD+R (Book Type: DVD-ROM) (Disc ID: CMC MAG-M01-00)

 

Did a search on your media MID and maybe you should read a little.  (That's why I put the link in the last response.  The info contained there applies to single layer discs also.):

 

http://www.google.com/#fp=f45a2b3d063d39e5&q=disc+id+cmc+mag-m01-00

 

 

OK, did check, learnt some stuff.

 

I'll be switching to Verbatim ASAP. How do you know the manufacturer's ID though? I'd like to know that before doing future burns.

 

Lastly, if the media is all the same (not saying it's good), how come the first 50 burns came out right and now none did?

[spinningwheel]

Media is seldom manufactured and sold by the same company.  The big commercial type names are, for the most part, simply resell someone elses product that has been rebadged with their brand name on it.  The best way that I have found is to only buy from reliable retailers who tell you what the MID of the disc is.  

 

If you look at the bottom of this post you will find links to the sites where most of us buy our media:

 

http://forum.imgburn.com/index.php?showtopic=8000