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Verification Fails With Dvd Spanning


srhookem

Question

I am using Toast 7.0.1. Each time I span DVD's to back-up files, the verification process for each disc fails with byte/sector errors.

 

Is the data actually OK that is on each disc? I just ran 12 DVD's in a span and I'm afraid to trash the files off my drives.

 

Steve

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Verification error can be caused by many things. Many people have found that bad ram will cause disc verification errors. If you've add extra ram, removing it and trying is always worth a chance. If the error goes away, you've found the problem.

 

The Apple Repair disc is the only tool that seems to really find the bad ram.

 

You may also want to try repairing permission on the drive and running Cocktail to clean things up.

 

Most byte/sector errors are often to to bad media, exactly what media are you using?

 

I am having similar problems and have done all of the above. I have run all the Cron Scripts via Cocktail, repaired disk permissions, verified and repaired the hard drive using 'fsck . . . ' , run the most comprehensive ram tests using Apple's diagnostic disc plus Memtest which all report healthy ram (as if I didn't know it after running the iMac on the same 1024Mb ram configuration for going on 3 years) and cleared the Pram. I also reduced the speed to 1. I have attempted to copy from my G4 iMac with SuperDrive to my new d2 Lacie DVD RW Dual Layer. I have had errors on two Dual Layer Disks 'Mac OS Error. Result Code = -5001.' This happens just at the end of the 'Writing Lead-Out' which must be just before the verification process. I have also now had four Single Layer DVD's fail at the Verification point with these bad sector errors or whatever you call them. I have tried a number of ways such as first making a disk image so that the burning would be straight from hard drive to DVD Writer. But I get the same #$^@ problem of failed verification. Even if a disk appears to work after failed verification, it will be unreliable, failing to read certain bits of data that you cannot manually check in any practical sort of way. When you need some data in the future you will end up not being able to read that bit of data and your DVD drive and computer will lock up/hang. So verification is absolutely essential. But now what I have just discovered is that the burning process completes perfectly if I use the internal SuperDrive on my G4 iMac. It has just finished. So the problem must be with these external devices like the Lacie d2 DVD RW etc. I have all the latest software and firmware updates so I am at a loss and I do not wish to waste more DVD media that cost money, especially the Dual Layer DVD's. Any informed advice, suggestions before I decide to return the drive on the grounds that it fails to do what it claims to and what I bought it for.

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Verification error can be caused by many things. Many people have found that bad ram will cause disc verification errors. If you've add extra ram, removing it and trying is always worth a chance. If the error goes away, you've found the problem.

 

The Apple Repair disc is the only tool that seems to really find the bad ram.

 

You may also want to try repairing permission on the drive and running Cocktail to clean things up.

 

Most byte/sector errors are often to to bad media, exactly what media are you using?

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I get the -5001 error code sometimes, too. I have a Quicksilver G4 Mac with an (upgraded) internal Pioneer DVR-110 Dual Layer burner.

 

What I have discovered is that whether I get the verification error depends on what movie I am burning. Most of my movies burn fine. But I have one movie that always gives a -5001 error and refuses to even begin the verification process. And I have another movie that always burns, but reports a sector error about halfway through verification.

 

The good news is, all these discs always turn out to be okay.

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It allows it to reburn but the verification will still fail.

 

I opened each disc and it looks like the data is there and intact. How do I know for sure? What exactly does the verification look for? Could it be that something is not correct with my hard drive but the data is fine?

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Is the data on the disc OK even though it won't verify? I need to remove items off my drives.

 

I have tried Verbatim 8x DVD-R, Memorex DVD-R and +R and TDK. All fail to verify. All my DVD's I've made work perfectly however. This has just come up since using Toast 7.

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I have had errors on two Dual Layer Disks 'Mac OS Error. Result Code = -5001.' This happens just at the end of the 'Writing Lead-Out' which must be just before the verification process.

 

I'm having this exact same problem with burning dual layer discs. (I haven't had any problems with disc spanning.) My drive is the latest model and it's only a little over a month old. I tried the firmware updater from LaCie and it says there aren't any updates for my drive.

 

My questions:

 

Are you still having problems with burning dual layer discs after updating your firmware?

 

Does anyone else have any suggestions about how to solve this problem? (DL discs are just too freakin' expensive to be making coasters!)

 

Software Configuration: Toast 7.0.2, Mac OS 10.3.9

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Verification error can be caused by many things. Many people have found that bad ram will cause disc verification errors. If you've add extra ram, removing it and trying is always worth a chance. If the error goes away, you've found the problem.

 

The Apple Repair disc is the only tool that seems to really find the bad ram.

 

You may also want to try repairing permission on the drive and running Cocktail to clean things up.

 

Most byte/sector errors are often to to bad media, exactly what media are you using?

 

Dear Freshburn,

 

After three successful DVD(video) burns with my new toast 7 software I too started getting the "mismatch at byte 1853...Verification Failed" message.

 

These resulting DVDs would play fine in a commerical DVD player but the verification fail did not make me feel too comfortable.

 

I did add new Ram to my system, a 1 gig Samsung pc 2700 chip to my pb 12inch rev A.

 

It takes pc 2100 but I was told the pc 2700 chip would work and give me upwards compatibility if i ever moved up to a more recent power pc 15 inch model

 

At any rate, after reading your advice I put back in my old pc2100 512MB chip and and the burns all passed verification!

 

Then I tried the new 1gig chip once agian and the verification process failed.

I guess my 1gig samsung chip does not work well in my machine.

 

I am puzzeled as to why it gave me three good burns off the top though?

 

Any other thoughts or comments?

 

I will return the samsung as it has a lifetime warranty and go for a 1Gig pc 2100 chip.

 

Thanks in advance for any more info.

 

Kerim

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OK, Lacie sent me a DVD firmware updater. The first part (bridge) failed, the second part updated fine. Odd. I don't know what is going on.

 

I did a 2-disc span using my internal superdrive and it writes and verifies perfectly. This is a Lacie D2 firewire problem. The response from Lacie was that the data is most likely perfect on the disc and the failed verification due to something as simple as the dates on the disc differing from the dates on the hard drive.

 

This is the link to the DVD update tool they sent:

 

http://www.lacie.com/download/drivers/DVD_UpdateTool.dmg

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I'm having this exact same problem with burning dual layer discs. (I haven't had any problems with disc spanning.) My drive is the latest model and it's only a little over a month old. I tried the firmware updater from LaCie and it says there aren't any updates for my drive.

 

My questions:

 

Are you still having problems with burning dual layer discs after updating your firmware?

 

Does anyone else have any suggestions about how to solve this problem? (DL discs are just too freakin' expensive to be making coasters!)

 

Software Configuration: Toast 7.0.2, Mac OS 10.3.9

 

I too can confirm this issue with Dual Layer discs. Using the newest LaCie D2 16x FireWire DVD drive (TSSG drive), Verbatim 6x-capable DVD+R DL discs, Toast 7.0.2 and Mac OS X 10.4.3.

 

The discs finish writing, and during the writing lead-out process the session fails with the Mac OS error quoted above. Verification does not run at this point, however the discs do appear to be usable. I tested this by copying all of the data from the burned DL disc back to the HD without problems.

 

Nevertheless, not being able to do verification to know your $5 disc is good doesn't leave me very confident. Anybody have any ideas on this? The drive firmware and FW bridge firmware have both been updated to the latest from LaCie. Everything else works fine from Toast and other apps (LightScribe burning, etc..)

 

- Jon

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I tried new DVD blanks, I tried slower burn speeds (down to 4X from "best") and I tried burning to the Pioneer drive rather than the Lacie D2.

 

No good. It still fails on different bytes/sectors each time. Each disc has a different location for the errors.

 

Please help Roxio! The self-support site for tickets is useless. I don't feel like I can use this product until this is answered. I certainly will not remove the files from my computer until this is resolved (and this defeats the entire back-up process!)

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