iMac DVD player will randomly not recognize DVDs

Discussion in 'iMac' started by jackbauer686, May 15, 2012.

  1. jackbauer686 macrumors newbie

    Joined:
    May 13, 2012
    #1
    Hi,

    I've been having problems with my iMac recently, more precisely with my DVD drive.

    I think it's a software problem, and not a mechanical problem. Let me explain:

    When I insert a DVD:
    - it will sometimes work perfectly. I can read, burn or whatever I feel like…
    - it will sometimes not work. I don't know why, but the drive gives a few try (mechanical noises), and than ejects the DVD. If I try a few more times to reinsert it, it will just keep the DVD and not eject it, without recognizing it. When I try to open the Disk Utility program, it will simply froze, or it will open after 5 minutes, but the DVD player will not exist and not appear.

    I need to restart the computer. Sometimes it will work after the restart. Sometimes not. It's really random, and I haven't found out on what it depends… Sometimes, when I reboot the beast because of a trapped-unrecognized DVD, the DVD player won't open. "Initialization error [-70012]"…

    I've tried Option-Cmd-P-R at the Start, but it didn't help… I feel like there's something wrong with the software and the connexion with the DVD drive.

    It's a 2 years old iMac, up to date, using Snow Leopard (Mac OS X 10.6.8).

    I've tried looking on the net, but a lot of people are experiencing mechanical problems (it simply never works), which I think is not the case here (it does randomly work perfectly).

    Any help would be amazingly appreciated! Thank you!
     
  2. Puevlo macrumors 6502a

    Joined:
    Oct 21, 2011
    #2
    Try inserting discs at the Startup Manager. Since there is no software being run here if any discs are automatically ejected it must be a hardware fault. Otherwise try running in safe boot to stop all unnecessary software from running.
     
  3. theSeb macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #3
    I can't help you, but I have the same problem with my 2009 MBP's DVD drive. It simply refuses to read some discs, which work on other computers and DVD players. It will sit there for 5 minutes making horrible grinding noises indicating to me in no uncertain terms that it is not happy.
     
  4. jackbauer686 thread starter macrumors newbie

    Joined:
    May 13, 2012
    #4
    Now that you say that about the Start Up Manager, I've thought about something.

    Could it be a problem related to the fact that I'm using BootCamp (900gb Apple, 100Gb Windows)?
     
  5. theSeb macrumors 604

    theSeb

    Joined:
    Aug 10, 2010
    Location:
    Poole, England
    #5
    Nope, it's completely unrelated. It's the drive itself that is a problem. Most likely a dirty or slightly misaligned laser pick up.
     
  6. Apple fanboy macrumors P6

    Apple fanboy

    Joined:
    Feb 21, 2012
    Location:
    Behind the Lens, UK
    #6
    I had a problem on my DVD player that it wouldn't recognise disks for formatting prior to recording. Cleaned the lens and works perfectly now.
     
  7. jackbauer686 thread starter macrumors newbie

    Joined:
    May 13, 2012
    #7
    Hi everybody,

    I tried to insert the DVD at the Startup manager. No dice. That would mean that it's not a software problem. I just don't understand why it sometimes works flawless.

    Anyway, a lot of you told me to clean the lens. Before I do it, I'd like to ask you a few questions:

    - If the lens has a problem, why do I get those "Initialization error [-70012]" and why does the DVD drive doesn't appear in the disc utility?
    - If it's not the lens, what could be the problem? If I am to open my iMac, I'd like to do it just once ;)

    Thanks a lot!
     
  8. Apple fanboy macrumors P6

    Apple fanboy

    Joined:
    Feb 21, 2012
    Location:
    Behind the Lens, UK
    #8
    You don't need to open your iMac to clean the DVD drive. Just buy one of those cheap DVD's with little brushes attached. That's what I used.
     
  9. jackbauer686 thread starter macrumors newbie

    Joined:
    May 13, 2012
    #9
    I'll buy one of those now.

    I just can't help but think that the lens is clean, and that there's a bigger problem.

    For example, at the moment, I can't open the disk utility, it simply freezes. And it's been 30 minutes that it's frozen. Isn't it related?
     
  10. skuid87 macrumors regular

    Joined:
    Apr 2, 2012
    #10
    Are these safe to use? I thought that you werent supposed to use these for slot-loading drives.
     
  11. Apple fanboy macrumors P6

    Apple fanboy

    Joined:
    Feb 21, 2012
    Location:
    Behind the Lens, UK
    #11
    Well they do in our IT department. If you have a defective drive I would give it a try before taking it to a repair centre or taking it apart yourself.
     
  12. jackbauer686 thread starter macrumors newbie

    Joined:
    May 13, 2012
    #12
    Hi,

    I tried those cheap DVD's with little brushes (even though it says you shouldn't use it with SLOT-IN disk drive, and... No dice... :(

    What would be the next step?

    Thanks!
     

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