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TomBrooklyn
20th June 2007, 11:41
Got what seemed to be a good rip w/ RI4Me even though the original disk was pretty scratched up, and went direct to ImgBrn as movie needed no compression. Got a verify error but backup played OK. I wonder what's up with the verify error.

LIGHTNING UK!
20th June 2007, 14:05
It just means the drive couldn't read that specific sector or whatever.

That's not to say another drive won't be able to.

So long as you're using a decent burner, up-to-date firmware and decent discs, you really can't do any more.

TomBrooklyn
20th June 2007, 19:17
Hi Lightning. How goes it? I'm liking ImgBrn. Thanks.

I'm glad the disk is working good and not a coaster. It just seemed curious that it works but had a verify error. Usually when I had a verify error the disk was no good.

Is it possible there might be a slight bad spot on the disk that is just not showing up as anything big? I actually ran through the viewing in high speed so I might have missed a glitch. At least I know it plays the whole disk though.

LoRd_MuldeR
20th June 2007, 20:27
I actually encountered the same with ImgBurn:
ImgBurn found dozens of errors during verify, but the disc was actually 100% okay for playback.
Also verification never found any error with other burning programs...

blutach
21st June 2007, 00:30
@TomBrooklyn,

You might have verify errors in just a few sectors. A high speed playback will inevitably miss this (and so might a playback at regular speed).

@Lord_Mulder

Your drive might be on the way out. If there were dozens of errors, it should be noticeable on playback. Have you done a read in DVDInfoPro/Nero CD Speed?

@both - logs would be good to see.

Regards

DaChew
21st June 2007, 03:10
a disk that plays means little, plays now in a good player, fine,
what about about an iffy player? What about in a few months or years after a little abuse. Even a disk that verifies in a good reading drive may not in a poorer/pickier drive.
too many variables and no absolutes

LoRd_MuldeR
22nd June 2007, 14:51
@Lord_Mulder

Your drive might be on the way out. If there were dozens of errors, it should be noticeable on playback. Have you done a read in DVDInfoPro/Nero CD Speed?

This is what CD-DVD Speed says:
Allgemeine Informationen
Laufwerk: BENQ DVD DD DW1620
Firmware: B7W9
Disktyp:: DVD+R (DAXON AZ3)
Gewählte Geschwindigkeit: 8 X
PI errors
Maximum: 20
Durchschnitt: 3.47
Gesamt: 33664
PI failures
Maximum: 8
Durchschnitt: 0.18
Gesamt: 1572
PO failures: 0
Jitter
Maximum: 10.4 %
Durchschnitt: 8.69 %
Scan-Statistik
Verstrichene Zeit: 9:50
Anzahl der Samples: 17153
Durchschnittliches Scanintervall: 8.33 ECC
Störimpulse entfernt: 0
Qualitätsindex: 95


Also note that the disc definitely plays absolutely fine. If there are errors, then they are not noticeable...

DaChew
22nd June 2007, 22:54
those are good numbers you shouldn't have any verification errors

LoRd_MuldeR
22nd June 2007, 23:34
those are good numbers you shouldn't have any verification errors

The strange thing is that I had *many* error. There is that error message box that tells you that an error was found. When I choose to continue verification, it shows up another error message box immediately. Then another one, and another one, and so on. After about 30 error message boxed I aborted the verification. Thought the disc was 100% screwed up, but it played fine to my surprise...

In fact the verification errors are not that important to me, as long as my disc is fine :)

r0lZ
23rd June 2007, 09:31
I had exactly the same problems yesterday, with a Verbatim DVD-R 16x (MCC 03RG20) burned at 4x in build mode with my Nec ND-6520A.

Unfortunately, I have lost the log, but I remember that there were approx 80 miscompare errors spread out over the whole DVD. The type of error and the offset was always the same.

The graphs produced by ImgBurn for DVDInfoPro are smooth, at least for the write curves. Of course, I've verified the DVD for read errors and PIE/PIF with my burner and an old JMLS XJ-HD165H, also with DVDInfoPro, and everything seems fine. I have also played the DVD with two standalone players without problem. I have also verified the DVD with ImgBurn, and again, no problem. Unfortunately, I can't verify it against the file, as I have burned the DVD in build mode, and I don't have an ISO. (BTW, LUK!, is it possible to implement a verify mode for DVD files?)

The same day, I have burned 2 other DVDs from the same box before that one, and one after, without problem. However, I have rebooted after the "bad" burn, because I suspected a software problem.

I have really no idea of the cause of the problem, but it's very strange!

r0lZ
23rd June 2007, 09:41
I have managed to reproduce the verify log by creating an ISO with my original DVD files, and using verify mode against that ISO.

I 10:29:34 Operation Started!
I 10:29:34 Source Device: [1:0:0] _NEC DVD_RW ND-3520AW 3.07 (X:) (ATA)
I 10:29:34 Source Media Type: DVD-R (Book Type: DVD-R) (Disc ID: MCC 03RG20) (Speeds: 2x, 4x, 6x, 8x, 12x, 16x)
I 10:29:34 Image File: C:\test.iso
I 10:29:34 Image File Sectors: 2,285,936 (MODE1/2048)
I 10:29:34 Image File Size: 4,681,596,928 bytes
I 10:29:34 Image File Volume Identifier: [removed]
I 10:29:34 Image File Application Identifier: IMGBURN V2.3.2.0 - THE ULTIMATE IMAGE BURNER!
I 10:29:34 Image File Implementation Identifier: ImgBurn
I 10:29:34 Image File File System(s): ISO9660, UDF (1.02)
I 10:29:35 Verifying Sectors... (LBA: 0 - 2285935)
W 10:29:42 Miscompare at LBA: 16, Offset: 176
W 10:29:42 Device: 0x16
W 10:29:42 Image File: 0x17
W 10:29:42 Total Errors in Sector: 14
I 10:29:42 Verifying Sectors...
W 10:29:43 Miscompare at LBA: 32, Offset: 4
W 10:29:43 Device: 0xB3
W 10:29:43 Image File: 0x61
W 10:29:43 Total Errors in Sector: 13
I 10:29:43 Verifying Sectors...
W 10:29:44 Miscompare at LBA: 48, Offset: 4
W 10:29:44 Device: 0xC3
W 10:29:44 Image File: 0x71
W 10:29:44 Total Errors in Sector: 13
I 10:29:44 Verifying Sectors...
W 10:29:45 Miscompare at LBA: 64, Offset: 4
W 10:29:45 Device: 0x8C
W 10:29:45 Image File: 0xFB
W 10:29:45 Total Errors in Sector: 7
I 10:29:45 Verifying Sectors...
W 10:29:45 Miscompare at LBA: 259, Offset: 20
W 10:29:45 Device: 0x16
W 10:29:45 Image File: 0x17
W 10:29:45 Total Errors in Sector: 8
I 10:29:45 Verifying Sectors...
W 10:29:46 Miscompare at LBA: 260, Offset: 54
W 10:29:46 Device: 0x16
W 10:29:46 Image File: 0x17
W 10:29:46 Total Errors in Sector: 4
I 10:29:46 Verifying Sectors...
W 10:29:47 Miscompare at LBA: 261, Offset: 54
W 10:29:47 Device: 0x16
W 10:29:47 Image File: 0x17
W 10:29:47 Total Errors in Sector: 4
I 10:29:47 Verifying Sectors...
W 10:29:47 Miscompare at LBA: 262, Offset: 4
W 10:29:47 Device: 0xDE
W 10:29:47 Image File: 0xB3
W 10:29:47 Total Errors in Sector: 7
I 10:29:48 Verifying Sectors...
W 10:29:48 Miscompare at LBA: 264, Offset: 4
W 10:29:48 Device: 0x8B
W 10:29:48 Image File: 0x57
W 10:29:48 Total Errors in Sector: 15
I 10:29:48 Verifying Sectors...
W 10:29:59 Miscompare at LBA: 31800, Offset: 1600, File: VIDEO_TS\VTS_01_1.VOB
W 10:29:59 Device: 0xE3
W 10:29:59 Image File: 0xA3
W 10:29:59 Total Errors in Sector: 1
I 10:29:59 Verifying Sectors...
W 10:30:16 Miscompare at LBA: 103480, Offset: 1600, File: VIDEO_TS\VTS_01_1.VOB
W 10:30:16 Device: 0xEA
W 10:30:16 Image File: 0xAA
W 10:30:16 Total Errors in Sector: 1
I 10:30:16 Verifying Sectors...
W 10:30:27 Miscompare at LBA: 144440, Offset: 1600, File: VIDEO_TS\VTS_01_1.VOB
W 10:30:27 Device: 0xEA
W 10:30:27 Image File: 0xAA
W 10:30:27 Total Errors in Sector: 1
I 10:30:27 Verifying Sectors...
W 10:30:40 Miscompare at LBA: 205880, Offset: 1600, File: VIDEO_TS\VTS_01_1.VOB
W 10:30:40 Device: 0xD6
W 10:30:40 Image File: 0x96
W 10:30:40 Total Errors in Sector: 1
I 10:30:40 Verifying Sectors...
W 10:30:45 Miscompare at LBA: 226360, Offset: 1600, File: VIDEO_TS\VTS_01_1.VOB
W 10:30:45 Device: 0xDF
W 10:30:45 Image File: 0x9F
W 10:30:45 Total Errors in Sector: 1
I 10:30:45 Verifying Sectors...
W 10:30:49 Miscompare at LBA: 246840, Offset: 1600, File: VIDEO_TS\VTS_01_1.VOB
W 10:30:49 Device: 0x7A
W 10:30:49 Image File: 0x3A
W 10:30:49 Total Errors in Sector: 1
I 10:30:49 Verifying Sectors...
E 10:32:19 Miscompare at LBA: 728120, Offset: 1600, File: VIDEO_TS\VTS_01_2.VOB
E 10:32:19 Device: 0x66
E 10:32:19 Image File: 0x26
E 10:32:19 Total Errors in Sector: 1
E 10:32:19 Failed to Verify Sectors!
I 10:32:19 Exporting Graph Data...
I 10:32:19 Graph Data File: C:\Program Files\ImgBurn\_NEC_DVD_RW_ND-3520AW_3.07_SATURDAY-JUNE-23-2007_10-29_MCC_03RG20.ibg
I 10:32:19 Export Successfully Completed!
E 10:32:19 Operation Failed! - Duration: 00:02:44
I 10:32:19 Average Verify Rate: 8,933 KB/s (6.4x) - Maximum Verify Rate: 17,768 KB/s (12.8x)
I'm pretty sure that the errors at the beginning of the disc were not present during the original verification process. There are probably some little differences in the ISO I've just created. The errors I had yesterday have always the same offset: 1600. This verify was interrupted before its end.

I have also verified the DVD against the ISO with my Source Device: [1:1:0] JLMS XJ-HD165H CH12 (Y: ) (ATA), and got the same errors.

Capsbackup
23rd June 2007, 15:45
I too had the same verify errors, using the same Verbatim media rOLZ listed, with my Plextor PX-716A and newest firmware 1.11. I tried playing back the disc on three different players. My older Sony DVP NS 325 would stop... skip ahead a couple of seconds and repeat that for what appeared to be the area that the verify showed problems. Same with my Cyberhome 300. But my other Sony DVP NS 575P played thru without any problems at all. I rebooted and burned another disc and this one verified and played back perfectly on all three players.. as would be expected. For reliability, longevity and better universal playback on the various MFG's and players, I feel more confident when the verify is succesful, not just the disc plays back on a player after an unsuccessful verification.

blutach
24th June 2007, 02:13
Yes, verify errors in the first 300 odd sectors in a rebuilt DVD are due mainly to things like different time and date. Using ISOBuster, find the LBA of VIDEO_TS.IFO. The verify errors after that one would indicate verification problems with the files.

Regards

LoRd_MuldeR
24th June 2007, 14:28
I just made an interesting experience: Burning the image with I/O set to "ASPI" results in hundreds of verification errors, although the disc is obviously fine! Well, there might be some errors - I can't exclude that - but there definitely not that many errors, as the disc plays 100% fine. Now when I change the I/O to "ElbyCDIO" and burn again (same DVD Writer, same DVD+R, same ISO), surprise: Verification runs through without one single error message!

blutach
24th June 2007, 14:35
You don't have AnyDVD running during the burn/verify process do you? This will certainly cause verify errors (and ImgBurn (www.imgburn.com) warns you to turn it off).

Regards

LoRd_MuldeR
24th June 2007, 15:03
You don't have AnyDVD running during the burn/verify process do you? This will certainly cause verify errors (and ImgBurn (www.imgburn.com) warns you to turn it off).

Regards

Nope, it's not even installed on my system....

LoRd_MuldeR
29th June 2007, 13:50
As LIGHTNING UK said, ImgBurn works best with SPTI. So the verification problem seems to happen with ASPI only, maybe it's even caused by Nero's ASPI DLL. I will use SPTI from now on. No verification errors found so far :)

r0lZ
29th June 2007, 14:19
I have never changed this setting, and it is SPTI - Microsoft.
The "SPTI - Use CdRom class" option is ticked also.

Normally I use only DVD+Rs, but I bought recently a pack of 25 Verbatim -Rs. I have burned 15 of them and had only one bad burn so far, reported above. Very strange...

DaChew
29th June 2007, 16:09
ND-6520A

http://www.google.com/search?hl=en&q=ND-6520A&btnG=Google+Search

you must have very rare drive there rolz

r0lZ
29th June 2007, 17:19
The A stands for a patched firmware, with the Nec riplock disabled.

DaChew
29th June 2007, 18:30
it was the 20 that threw me

http://liggydee.cdfreaks.com/page/en/

the A seems to be arbitrary