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  1. #1


    Member Since
    May 19, 2007
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    8
    Which is faulty? DVD drive or DVDs?
    I've been having problems burning DVDs on both our MacBook Pro (17-inch Core 2 Duo) and our iMac (20-inch Core 2 Duo), using an external DVD burner too, and using various makes of DVDs.

    Some burn, some don't, some burn but then fail the verify.

    Does anyone know how I can determine whether it is the drives or DVDs that are the problem? Clearly if the DVDs are bad, all drives will fail with them but as different drives fail in different ways with different DVDs, I'm at a lost to how to diagnose this!

    Is there, perhaps, any diagnostic software that wll be able to distinguish between a faulty DVD and a faulty drive so I can figure out what I need to replace / fix?

    Thanks.

  2. #2

    Kevriano's Avatar
    Member Since
    Jul 02, 2006
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    Crawley, England
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    Specs:
    20" Intel iMac 2.4 Ghz/3G Ram/320HD, Snow Leopard. PBook G4, 1.5Ghz/1.5 Ram/250 HD, Leopard 10.5.6.
    Firstly I would give the drives a clean out, either by blowing air into them, or with a disc based cleaner (though some people hate them, I have found them to be fine).
    Secondly, what brand of DVD are you using? Maxell's are notorious for not working on Mac's for example.
    Thirdly, what software are you using to burn with?
    Try my custom Mac Forums Search Engine: Mac Forums Google Search

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  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
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    Nambucca Heads Australia
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    Specs:
    Imac 27", i7 3.5GHz, 3TB Fusion drive, 32GB memory, macOS Sierra.
    MBP and iMacs both use slot loading optical drives which seem to have a high failure rate. Just look through the threads. My money would be on the optical drive/s having failed.
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  4. #4


    Member Since
    May 19, 2007
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    8
    Quote Originally Posted by Kevriano View Post
    Firstly I would give the drives a clean out, either by blowing air into them, or with a disc based cleaner (though some people hate them, I have found them to be fine).
    Secondly, what brand of DVD are you using? Maxell's are notorious for not working on Mac's for example.
    Thirdly, what software are you using to burn with?
    OK. Well, I've used the disk-based cleaner on the MacBook Pro as you suggested. Then I tried a Tesco DVD+R and an Imation DVD+RW with Disk Utility.

    The DVD+R reported "Unable to burn ... (The burn failed becaused of a medium write error.)

    The DVD-RW reported "Unable to burn ... (The disc drive didn't respond properly and can't recover or retry.)

    I've still got to try the same DVDs on other drives / Macs (and other burning software) but that's the results so far...

  5. #5


    Member Since
    May 19, 2007
    Posts
    8
    Just tested it on an external DVD burner (NEC DVD_RW ND-675A) (Same MacBook Pro using Disk Utility using the same DVD-RW; erased it (successfully) first then tried to burn. It burned ok but then error "Verifying the burned data failed.

    An attempt to mount the burned disc fails.

  6. #6

    Kevriano's Avatar
    Member Since
    Jul 02, 2006
    Location
    Crawley, England
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    4,558
    Specs:
    20" Intel iMac 2.4 Ghz/3G Ram/320HD, Snow Leopard. PBook G4, 1.5Ghz/1.5 Ram/250 HD, Leopard 10.5.6.
    Then I would say that your disc burners are shot, but for it to be all 3 is somewhat unlikely/unlucky.
    As an experiment, try using a different disc burning utility.
    Burn is a good choice, as it's free. Perhaps you have issues within disk utility, or the way you are using it (no offence meant btw). Both brands of disc you are using are fine, never had an issue with them.

    Burn - Home
    Try my custom Mac Forums Search Engine: Mac Forums Google Search

    Please use the reputation system if you consider any help given useful (it's the little ✓/✘ on the left <---)


  7. #7


    Member Since
    May 19, 2007
    Posts
    8
    Interesting update: I've just tried using DVD-Rs instead of DVD+R and they worked on both machines! Despite both machines apparently supporting both formats...

    Stranger & stranger...

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